Sika Product SolutionsDomestic Appliances

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Delivering Your SolutionThe domestic appliances market, especially white goods, is seeing increasing demands for energy effi cient, low noise emission products, that are also aesthetically pleasing. Consumer price demand combined with increasing raw materials has led to higher pressure on producers to balance cost and performance.

As a result, designers and producers must continually fi nd novel solutions to meet market perfor-mance requirements whilst at the same time are increasingly effi cient to produce.

Sika supplies high quality solutions for a wide range of applications in the areas of bonding, sealing, damping and reinforcing through the various stages of appliances production.

Our experts are available worldwide to evaluate your production process and help you achieve the most effi cient and cost effective solution.

• Sikafl ex® one component polyurethanes and hybrid polyurethanes

• SikaMelt® reactive and non-reactive hot melts

• Sikasil® one and two component silicones

• SikaFast® two component acrylic adhesives

• SikaForce® one and two component polyurethane adhesives

• SikaPower® one component epoxy based adhesives

• SikaDamp® acoustic damping

• SikaLastomer® butyl rubber

• SikaTherm® and SikaSense® water and solvent based adhesives

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Sika Product Solutions for Washing Machines and Dryers_8

Sika Product Solutions for Cookers_6

Content

Sika Product Solutions for Refrigerators and Freezers _4

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Sika Technology Guide

Sika Solutions for Refrigerators and Freezers

Display bonded with SikaMelt®

Dew condensation prevention with SikaDamp®

Handle reinforcement with Sikafl ex®

Acoustic dampening with SikaDamp®

Seam sealing with SikaMelt®

Housing bonded and stiffened with SikaPower®

Decor panel bonded with SikaMelt®

Technology Product Example Product Benefi t Application Examples

SikaMelt® Reactive and Non-Reactive Hot Melts

Reactive hot melt adhesives react with moisture to form permanent bonds resistant to high temperatures.

Non-reactive hot melt adhesives become solid at room temperature to form rapidly durable bonds.

SikaMelt®-9671 General purpose assembly adhesive with short open time. Can be used on polar plastic such as ABS, PC, PVC, PET, primed and painted sheets.

– Bonding of metals and plastics that are exposed to higher temperature – First fi xation for immediate transport– Seam sealing for refrigerator – Assembly joints of air fi lters– PP components without surface preparation

SikaMelt®-9285 Pressure sensitive hot melt adhesive. Good initial adhesion and heat resistance.

SikaMelt®-9171 Good adhesion on non polar substrates without pre-treatment.

Sikafl ex® one component Polyurethanes

One component polyurethane, moisture curing sealants and adhesives.– Low odour– VOC free

Sikafl ex®-221i Universal non-sag sealant. VOC and emission free. – General sealing and bonding application on wide range of substrates such as treated metal, plastics etc. – Counter weight bonding for washing machine – Stiffening of housing– Sealing of refrigerator and freezer

Sikafl ex®-252i Assembly adhesive with high early strength.

Sikafl ex®-254 Booster Solvent free one component adhesive that can be accelerated with the aid of Sika® Booster.

SikaPower® one component Epoxy based Adhesives

Sika’s epoxy hybrid technology is designed for use in industrial processes where heat curing facilities are available. – Vibration absorption– Reduces or substitute mechanical fi xations– Allows design freedom

SikaPower®-4508 Semi structural adhesive designed for heat curing during powder coating processes.

– Stiffening the housing of washing machine, oven, refrigerator etc.– Sealing of seams or joints for sheet metal assembly work prior to powder coating oven

SikaPower®-4506 Weld through sealant which pre-cures in ambient conditions.

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Taking a Shortcut by Using Hot Melt Adhesives

Pressure sensitive hot melt adhesives (PSA) tapes are widely used in the domestic appliances industry for quick attachment of decorative panels, touch screens, covers, trims and many other applications.

Sika believes that there is a more cost efficient solution to tapes by removing the carrier and applying the hot melt adhesive directly to the components.

This has several technical advantages and brings significant cost savings:

• Manualorfullyautomatedapplicationispossiblebyeliminationofthereleasepaper.

• Theadhesivestillallowsrepositioningwithintheopentime,partscanbemovedafterassembly.

• Opensupopportunitiestousereactivehotmeltadhesivethatreactwithmoisturetoformdurable

high strength bonds, even in warm environments.

• Liquidhotmeltcanbeappliedinanybeadshapeandonanysubstrategeometry,givingunparalleled

design freedom.

• Insomecases,theadhesivecanbefoamedupto60%toreducethematerialcostfurther.

Technology Product Example Product Benefit Application Examples

SikaMelt® Reactive and Non-Reactive Hot Melts

Reactive hot melt adhesives react with moisture to form permanent bonds resistant to high temperatures.

Non-reactive hot melt adhesives become solid at room temperature to form rapidly durable bonds.

SikaMelt®-9671 General purpose assembly adhesive with short open time. Can be used on polar plastic such as ABS, PC, PVC, PET, primed and painted sheets.

– Bonding of metals and plastics that are exposed to higher temperature – First fixation for immediate transport– Seam sealing for refrigerator – Assembly joints of air filters– PP components without surface preparation

SikaMelt®-9285 Pressure sensitive hot melt adhesive. Good initial adhesion and heat resistance.

SikaMelt®-9171 Good adhesion on non polar substrates without pre-treatment.

Sikaflex® one component Polyurethanes

One component polyurethane, moisture curing sealants and adhesives.– Low odour– VOC free

Sikaflex®-221i Universal non-sag sealant. VOC and emission free. – General sealing and bonding application on wide range of substrates such as treated metal, plastics etc. – Counter weight bonding for washing machine – Stiffening of housing– Sealing of refrigerator and freezer

Sikaflex®-252i Assembly adhesive with high early strength.

Sikaflex®-254 Booster Solvent free one component adhesive that can be accelerated with the aid of Sika® Booster.

SikaPower® one component Epoxy based Adhesives

Sika’s epoxy hybrid technology is designed for use in industrial processes where heat curing facilities are available. – Vibration absorption– Reduces or substitute mechanical fixations– Allows design freedom

SikaPower®-4508 Semi structural adhesive designed for heat curing during powder coating processes.

– Stiffening the housing of washing machine, oven, refrigerator etc.– Sealing of seams or joints for sheet metal assembly work prior to powder coating oven

SikaPower®-4506 Weld through sealant which pre-cures in ambient conditions.

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Sika Solutions for Cookers

Ceramic hob backrail bonding with Sikasil®

Cooker top bonding with Sikasil®

Control panel bonded with Sikasil®

Oven glass bonded with Sikasil®

Corner bracket bonded with Sikasil®

Sika Technology GuideTechnology Product Example Product Benefi t Application Examples

Sikasil® one and two component Silicones

– Resistance to high temperatures– Consistently high mechanical properties even under severe conditions– Excellent adhesion on a wide range of substrates with minor pre-treatment

Sikasil® AS-70 One component adhesive with high mechanical strength. – Glass to metal, plastic frame bonding– Ceramic cooktop bonding– Sealing and bonding of dishwasher housing– Metal and plastic brackets on decorative panel –“Formed-in-Place-Gasket”(FIPG)materialforflangesealing,e.g.ontransmissions, compressors and pumps

Sikasil® AS-770 Sikasil® AS-785Sikasil® AS-790

Two component adhesives, available with pot life of less than 5 minutes and up to 1 hour.

Sikasil® AS-780 Two component adhesive, high green strength for tape replacement.

Sikasil®-3180 One component sealant which retains its elastomeric properties up to 250° C and short-term up to 300° C.

Sikafl ex® one component Hybrid Polyurethanes

One component STP, moisture curing sealants and adhesives. –Classificationfree,VOCandIsocyanatefree– Low odour– Limited pre-treatment

Sikafl ex®-515 Fast skinning universal sealant. – General sealing and bonding application on wide range of substrate such as metal, powder coats, plastics etc. with minimal surface pre-treatment– Bonding of decorative and front panel – Stiffening of housing– Sealing of refrigerator and freezer

Sikafl ex®-552 AT One component assembly adhesive suitable for structural joints.

Sikafl ex®-554 Booster Solvent free one component adhesive that can be accelerated with the aid of Sika® Booster.

SikaFast® two component Acrylic Adhesives

– Rapid curing, with a variety of open times– Rapid build-up of green and fi nal bond strength– Excellent adhesion on glass, metals, plastics

SikaFast®-5211 NTSikaFast®-5215 NTSikaFast®-5221 NT

Short open time from 3 minutes to 30 minutes resulting in fast adhesion build-up and through curing of 10 minutes to 120 minutes.

– Bonding of metals, glass, plastics, brackets on panels, displays and wherever strong bond and fast adhesion build-up is required – SikaFast® fl exible adhesives are designed to replace mechanical fi xings such as rivets, screws or welding– Bonding of decorative element and front panels

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Ceramic hob backrail bonding with Sikasil®

Cooker top bonding with Sikasil®

Control panel bonded with Sikasil®

Oven glass bonded with Sikasil®

Corner bracket bonded with Sikasil®

Technology Product Example Product Benefit Application Examples

Sikasil® one and two component Silicones

– Resistance to high temperatures– Consistently high mechanical properties even under severe conditions– Excellent adhesion on a wide range of substrates with minor pre-treatment

Sikasil® AS-70 One component adhesive with high mechanical strength. – Glass to metal, plastic frame bonding– Ceramic cooktop bonding– Sealing and bonding of dishwasher housing– Metal and plastic brackets on decorative panel –“Formed-in-Place-Gasket”(FIPG)materialforflangesealing,e.g.ontransmissions, compressors and pumps

Sikasil® AS-770 Sikasil® AS-785Sikasil® AS-790

Two component adhesives, available with pot life of less than 5 minutes and up to 1 hour.

Sikasil® AS-780 Two component adhesive, high green strength for tape replacement.

Sikasil®-3180 One component sealant which retains its elastomeric properties up to 250° C and short-term up to 300° C.

Sikaflex® one component Hybrid Polyurethanes

One component STP, moisture curing sealants and adhesives. –Classificationfree,VOCandIsocyanatefree– Low odour– Limited pre-treatment

Sikaflex®-515 Fast skinning universal sealant. – General sealing and bonding application on wide range of substrate such as metal, powder coats, plastics etc. with minimal surface pre-treatment– Bonding of decorative and front panel – Stiffening of housing– Sealing of refrigerator and freezer

Sikaflex®-552 AT One component assembly adhesive suitable for structural joints.

Sikaflex®-554 Booster Solvent free one component adhesive that can be accelerated with the aid of Sika® Booster.

SikaFast® two component Acrylic Adhesives

– Rapid curing, with a variety of open times– Rapid build-up of green and final bond strength– Excellent adhesion on glass, metals, plastics

SikaFast®-5211 NTSikaFast®-5215 NTSikaFast®-5221 NT

Short open time from 3 minutes to 30 minutes resulting in fast adhesion build-up and through curing of 10 minutes to 120 minutes.

– Bonding of metals, glass, plastics, brackets on panels, displays and wherever strong bond and fast adhesion build-up is required – SikaFast® flexible adhesives are designed to replace mechanical fixings such as rivets, screws or welding– Bonding of decorative element and front panels

One Component Versus two Component Adhesives

The chemical reaction in a one component adhesive is initiated by moisture, taken either from the substrate where the adhesive is applied, or from the atmospheric air. The adhesive bead starts to cure from the outside at a typical speed of 3 to 5 mm per day, depending on ambient conditions. This process can be accelerated by applying heat or extra moisture.

Two component adhesives start curing when mixed together and the speed of this reaction can be tailored to suit almost any particular process need. Fast assembly lines will use extremely fast curing systems, while manual or semi automated operations will use products with longer process time to minimize the risk of wasting adhesive.

The decision whether to use a one component or a two component adhesive depends on many different para-meters. Sika can assist to evaluate your production requirements and helps you select the most cost effective solution.

Two Component Adhesives One Component Adhesives

Fast curing, parts can be moved within seconds. Curing speed depends on ambient conditions, climate chamber may be required.

Process speed predictable and constant. Suitable for discontinous operations.

Mixing with automatic equipment required. No mixing required.

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Sika Solutions for Washing Machines and Dryers

Top panel bonded with SikaForce®

Control panel bonded with SikaMelt®

Door sealing with SikaLastomer®

Counter weight bonded with Sikafl ex®

Heat condensator bonded with SikaForce®

Sika Technology GuideTechnology Product Example Product Benefi t Application Examples

SikaForce® one and two component Polyurethane Adhesives

– Rapid curing and adhesion build-up– High strength elastic adhesives – Available in a range of speeds

SikaForce®-7550 General purpose structural and highly fl exible assembly adhesive with variable curing speeds.

– ABS/PVC frame bonded on plywood/phenolic/melamine panels for top of appliances– Bonding of heat condensator for dryer– Sandwich assembly constructionsSikaForce®-7720 General purpose structural assembly adhesive with variable curing speeds.

SikaLastomer® Butyl Rubber

Butyl rubbers remain permanently plastic. They can seal components which are designed for subsequent disassembly.

SikaLastomer®-710 Pasty sealant with good non sagging performance. – HVAC units – heating, ventilation, air-conditioning– General sealing from dust and water and access panels– Sealing of washing machine door gasketSikaLastomer®-714 Permanently tacky butyl sealant.

SikaDamp® Acoustic Damping

The preformed and tailor shaped butyl products are solvent free, remain permanently plastic and have excellent damping capabilities.

SikaDamp® VTS-15 Heat resistance preformed butyl sheet available with adhesive fi lm and aluminium sheet on one side.

– Dampening of structural and airborne noise from air-conditioner, refrigerator, compressor etc.

SikaDamp® VHS-15 Heat conductive preformed butyl sheet for the prevention of ice accumulation on the refrigerator door gaskets.

Water based, sprayable acoustic dampening coat.– Excellent acoustic performance – Temperature resistance up to 100° C – Solvent free

SikaGard®-6680 One component air drying water-based acrylic dispersion.

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From Mechanical Fixation to Bonding

The heavy counter weight for washing machines are typically mechanically connected on the drum assembly. The mass of the counter weight has had to increase due to higher spin speeds of washing machines. Conventional joining methods such as screwing, bolting or welding leads to high stress concentrations in the connections between the counter weight and the drum assembly, that can form cracks either in the drum or the concrete counter weight.

To ensure a durable connection and maximize the service life of the materials, the parts should be bonded in order to distribute the stresses evenly throughout the assembly.

Sika adhesives are a powerful tool not only to increase performance of the detergent solution tub assembly but also to convert a semi automated and partially manual process into a fully automated robotic line.

The major benefits are:

• Substantialcostsavingsintheoverallprocess

• Fullyautomatedhighspeedproduction

• Increasedperformanceandlonglifecycleofthedrumassembly

Technology Product Example Product Benefit Application Examples

SikaForce® one and two component Polyurethane Adhesives

– Rapid curing and adhesion build-up– High strength elastic adhesives – Available in a range of speeds

SikaForce®-7550 General purpose structural and highly flexible assembly adhesive with variable curing speeds.

– ABS/PVC frame bonded on plywood/phenolic/melamine panels for top of appliances– Bonding of heat condensator for dryer– Sandwich assembly constructionsSikaForce®-7720 General purpose structural assembly adhesive with variable curing speeds.

SikaLastomer® Butyl Rubber

Butyl rubbers remain permanently plastic. They can seal components which are designed for subsequent disassembly.

SikaLastomer®-710 Pasty sealant with good non sagging performance. – HVAC units – heating, ventilation, air-conditioning– General sealing from dust and water and access panels– Sealing of washing machine door gasketSikaLastomer®-714 Permanently tacky butyl sealant.

SikaDamp® Acoustic Damping

The preformed and tailor shaped butyl products are solvent free, remain permanently plastic and have excellent damping capabilities.

SikaDamp® VTS-15 Heat resistance preformed butyl sheet available with adhesive film and aluminium sheet on one side.

– Dampening of structural and airborne noise from air-conditioner, refrigerator, compressor etc.

SikaDamp® VHS-15 Heat conductive preformed butyl sheet for the prevention of ice accumulation on the refrigerator door gaskets.

Water based, sprayable acoustic dampening coat.– Excellent acoustic performance – Temperature resistance up to 100° C – Solvent free

SikaGard®-6680 One component air drying water-based acrylic dispersion.

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Creating ProfitProcess materials such as adhesives and sealants have a small material cost contribution on your final product. Nevertheless, these materials can have a significant impact on the final product costs as they have a major influenceontheproductionprocess.Itisthereforecriticallyimportanttoperfectly match the materials to the specific process.

Our technical experts can help you by assessing the key process steps and parameters that can be improved by using Sika adhesives. Based on our long experience, we know that choosing the right product can lead to many improvements, such as adhesive consumption optimization or cycle time, waste and reject reduction. It isourgoal tohelpyou toachieve these targets.Tounderstandhow,please contact your local Sika office.

less rejects

less waste

reduced consumption

faster cycle times

unique end-product properties

Sika helps offeringadded value products

to your customers

Sika helpsto reduce your cost

Current Profit

Future Profit

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Finding Solutions TogetherWe develop bonding, sealing, damping and reinforcing solutions in close cooperation with our customers in the domestic industry. To us, this means not only developing best-in-class products to match given technical and commercial requirements, but also ensuring top performance throughout the design, prototyping, validation and full production phases. As a Sika customer, you can expect to receive first class support and ad-vice on optimum product selection, but also on how to apply it in the best possible way. This becomes crucial when cycle times need to be reduced to seconds or when material consumption must be minimized. Testing CapabilitiesInourwell-equipped laboratories throughout theworld,our technicianscan perform adhesion tests under almost any condition requested by a norm, an industry standard or a customer specific demand. They will de-fine and run appropriate adhesion test programs to validate a product selection in order to ensure durable and safe solutions. Sika test center in Madison Heights USA, is used to evaluate the perfor-mance of Sika acoustic solutions for domestic appliances. The state-of-the-art 30’000 m2 complex houses sound-reflecting and anechoic cham-bers to carry out tests and trials under simulated real-life conditions.

Application ExpertiseOur System Engineers can make process and material adjustments for pumps, dispensers and even robots. They perform feasibility studies to ensure a trouble free introduction of Sika products based on long term relationships with key equipment suppliers. We have built up our expe-rience and know-how through many years of collaboration with clients who fully robotize their manufacturing processes to ensure high quality end products and to achieve short cycle times combined with high volume throughput. Implementation and Customer TrainingTo ensure a smooth implementation, Sika engineers will provide on-site application training to your technical and operation people, and can help preparingoperatingandQCmanualstoensureconformitywithISOstan-dards. A Competent Local Support, Everywhere in the WorldWith production, sales, service and logistics operations around the globe, Sika can ensure optimum local language communication and understan-ding throughout every phase of project.

Sika – a Global Player in Specialty Chemicals for Construction and Industry

Sika AG, located in Baar, Switzerland, is a globally active specialty chemicals company. Sika supplies the building and construction industry as well as manufacturing industries (automotive, bus, truck, rail, alternative energies, building components).

Sika is a leader in processing materials used in sealing, bonding, damping, reinforcing and protecting load-bearing structures. Sika’s product lines feature high-quality concrete admixtures, specialty mortars, sealants and adhesives, damping and reinforcing materials, structural strengthening systems, industrial flooring as well as roofing and waterproofing systems.

Worldwide local presence in 76 countries and some 15,300 employees link customers directly to Sika and guarantee the success of all partners.

Visit our website at www.sika.com.

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