product data sheet sarnacol®-2172 spray · appearance / colour colour red shelf life 12 months...

PRODUCT DATA SHEETSarnacol®-2172 SprayPOLYURETHANE SPRAY APPLIED ADHESIVE FOR SARNAFIL® G MEMBRANES.

PRODUCT DESCRIPTIONSarnacol®-2172 Spray is a 1-part, polyurethane based,moisture-curing, spray applied contact adhesive in apressurised canister system.

USESSprayable adhesive to bond Sarnafil G membranes tospecific substrates

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CHARACTERISTICS / ADVANTAGESQuick adhesive applications using pressurised canis-ter and spray gun

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Less wastage of adhesive due to pressurised contain-er

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PRODUCT INFORMATIONChemical Base Polyurethane moisture-curing

Packaging Packaging unit Single canister 19,4 kg (Adhesive13,3 kg)

Packaging dimension Cardboard box 320 mm × 320 mm ×460 mm

Refer to current price list for packaging variations

Appearance / Colour Colour red

Shelf Life 12 months from date of production

Storage Conditions The product must be stored in original, unopened and undamaged sealedpackaging in dry conditions at temperatures between +5 °C and +25 °C. Al-ways refer to packaging.

Consistency liquid

Product Data SheetSarnacol®-2172 SpraySeptember 2019, Version 01.01020945072000000028

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SYSTEM INFORMATIONCompatibility Not compatible in direct contact with EPS/XPS insulation boards, copper

plate, bituminous substrates, waterproofing membranes (thermoplastics /elastomers) excluding soft PVC. These materials could adversely affect theproduct properties

APPLICATION INFORMATIONConsumption ~150 g/m2 – 200 g/m2 on non-porous substrates

~400 g/m2 on porous substratesOne single canister covers ~80–100 m2.These figures are theoretical and do not allow for any additional materialdue to surface porosity, surface profile, variations in level or wastage etc.

Ambient Air Temperature At least +5 °C

Substrate Temperature At least +5 °C

Open Time Temperature Open Time Tgel

+30 °C 10 minutes+20 °C 20 minutes+10 °C 30 minutes+5 °C 40 minutes

These times may vary due to ambient conditions.

APPLICATION INSTRUCTIONSSUBSTRATE QUALITY

The supporting structure must be of sufficient struc-tural strength to apply all new and existing layers ofthe roof build up. Complete roof system must be de-signed and secured against wind uplift loadings. Thesubstrates must be solvent resistant, uniform, firm,clean, dry, free of grease, bitumen, oil, dust andloosely adhering particles. Sheet metal must becleaned with Sarna Cleaner before adhesive is applied.

SUBSTRATE PREPARATION

Use the appropriate preparation equipment toachieve the required substrate quality

APPLICATION

Strictly follow membrane installation procedures asdefined in method statements, application manualsand working instructions which must always be adjus-ted to the actual site conditions.Canister and spray-gun set-upNathalie insert images and text for Canister andspray-gun set-up here not in 'Maintenance' attribute.

Sarnafil® G 410- Membrane (Contact bonding)

Spray apply 1 coat of Sarnacol®-2172 Spray directlyonto the substrate as a priming coat. Allow to drycompletely. Apply 2 coats of adhesive on absorbentsubstrates. Prime only the area of the roofing wherethe membrane will be applied on the same day.

1.

Lay out Sarnafil® G 410, align and fold back to ap-proximately half its length.

2.

Spray apply Sarnacol®-2172 Spray evenly on the un-derside of the membrane.

3.

When the adhesive surface has become ‘tacky’,carefully fold back Sarnafil® G 410 onto the sub-strate. Press down firmly on the membrane using asuitable pressure roller such as a water-filled, orheavy steel roller 40–50 kg.

4.

Fold back the second half of the membrane and re-peat as above.

5.

Sarnafil® G 410- Felt backed membrane (Wet bond-ing)

Spray apply 1 coat of Sarnacol®-2172 Spray directlyonto the substrate as a priming coat. Allow to drycompletely. Apply 2 coats of adhesive on absorbentsubstrates. Prime only the area of the roofing wherethe membrane will be applied on the same day.

1.

Lay out Sarnafil® G 410 Felt, align and fold back toapproximately half its length.

2.

Spray apply Sarnacol®-2172 Spray evenly on the un-derside of the membrane.

3.

While the adhesive surface is still wet, carefully foldback Sarnafil® G 410 onto the substrate. Press downfirmly on the membrane using a suitable pressureroller such as a water-filled, or heavy steel roller40–50 kg.

4.

Fold back the second half of the membrane and re-peat as above.

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CLEANING OF TOOLS

Tools and equipment must be cleaned with Sika SprayCleaner or Sarna Cleaner immediately after use. Purgethe adhesive through the hose & application gun (ap-prox. 250 ml) as necessary before and after use.


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MAINTENANCECanister and spray-gun set-upIt is important to set-up the Sarnacol®-2172 Spray can-ister adhesive correctly before use to ensure the bestpossible performance and to avoid leakage or systemfailure.

01.Remove the black capform the canister valve.

02.Attach the rubberhose to the canister valve(using the small nut) andattach the other end ofthe braided-hose to thespray-gun (using the largenut). Tighten with a span-ner.03.Attach the other endof the rubber hose to thespray-gun (using the largenut). Tighten with a span-ner.

04.Using the locking-nutprovided, attach thespray-tip to the end ofthe spray-gun

05.Fully open the valveon the canister.

06.Pull the trigger on thespray-gun to apply adhes-ive.

07. Adjust the spray pat-tern by turning the blackvalve on the spray-gunanti-clockwise until aspray pattern width of~300 mm in width isachieved.

Canister and spray-gun maintenance guideOnce work has been completed, ensure the valve onthe canister remains open. Failure to do this maycause the adhesive to block the hose

01.Turn the spray-gun offby turning the black valveclockwise until it is fullyclosed.

02.Unscrew the spray-tipand the end of the spray-gun. Clean the spray-tipand the end of the spray-gun with Sika SprayCleaner or Sarna Cleanerusing a soft nylon brushto ensure the aperture isclear. This is essential.Failure to clean the spray-tip and the end of thespray-gun may result indamage to the apertureand prevent the systemfrom working. Place thespray-tip and locking-nutin a container with asmall amount of SikaSpray Cleaner or SarnaCleaner until it is neededagain. Ensure the contain-er is closed and airtight.

Canister flushing system01.Ensure the valve onthe canister is completelyturned off before attach-ing the assembly.

02.Unscrew the hosefrom the canister valve.

03. Attach the assemblyto the valve. Ensure theassembly remains up-right whilst the nut is tightened. Attach thehose to the assembly. En-sure the assembly re-mains upright whilst thehose nut is tightened04.Check the tap on theassembly is off before ap-plying the Sika SprayCleaner. Screw the Sika®Spray Cleaner canister in-to the top of the as-sembly and open the redvalve.


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05.Aim the spray-gun in-to a waste container, ap-ply pressure to the trig-ger on the gun to pushSika® Spray Cleanertrough the hose and gununtil the adhesive startsto dispense. Keep pres-sure on the trigger untilthe hose and gun arethoroughly cleaned.

Canister system disposal01. The Sarnacol®-2172Spray canister containscompressed gas. It mustbe emptied by carefullyopening the valve, whichwill release anyexcess adhesive and/orpressure. Allow any ex-cess adhesive and/orpressure to fully escapeinto a suitable container.Leave the valve open.Once the canister isempty and completelydepressurised, the circu-lar disk can be pierced us-ing a non-ferrous bar/rod.Allow any remaining ad-hesive to cure. The emptydepressurised canistershould be disposed/re-cycled in accordance withlocal disposalregulations..

FURTHER DOCUMENTSProduct Data Sheets: Waterproofing membranes

LIMITATIONSInstallation work must only be carried out by Sika®trained and approved contractors, experienced in thistype of application.

The spray tip or gun used with other Sika® sprayproducts must not to used with Sarnacol®-2172Spray.

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The canister and gun will remain usable for 2 weeksafter opening. If it is not intended to use the systemwithin this time, the adhesive in the hose and gunmust be renewed by purging ~250 ml of adhesivethrough the system every 2 weeks.

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Overlap sections that require hot air welding must beprotected during spray application.

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Use Sarnafil Lap Cleaner to remove adhesive residuefrom the roof membrane.

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If the system is not going to be used within 2 weeks,it is recommended to flush the gun and hose with theSika Canister Flushing System. Once canister isempty, the gun/hose can be transferred to a new ad-hesive canister.

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Installation of some ancillary products, e.g. contactadhesives / cleaners is limited to temperatures above+5 °C. Observe temperature limitations in the appro-priate Product Data Sheets.

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Special measures may be compulsory for installationbelow +5 °C ambient temperature due to safety re-quirements in accordance with national regulations.

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VALUE BASEAll technical data stated in this Data Sheet are basedon laboratory tests. Actual measured data may varydue to circumstances beyond our control.

LOCAL RESTRICTIONSNote that as a result of specific local regulations thedeclared data and recommended uses for this productmay vary from country to country. Consult the localProduct Data Sheet for the exact product data anduses.

ECOLOGY, HEALTH AND SAFETYLocal safety regulations must be observed and it advis-able to wear PPI when working with this product withparticular attention paid to cutting and handling.Transportation Class: The product is not classified ashazardous good for transport. Disposal: The material isrecyclable. Disposal must be according to local regula-tions. Please contact your local Sika sales organisationfor more information.


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LEGAL NOTESThe information, and, in particular, the recommenda-tions relating to the application and end-use of Sikaproducts, are given in good faith based on Sika's cur-rent knowledge and experience of the products whenproperly stored, handled and applied under normalconditions in accordance with Sika's recommenda-tions. In practice, the differences in materials, sub-strates and actual site conditions are such that no war-ranty in respect of merchantability or of fitness for aparticular purpose, nor any liability arising out of anylegal relationship whatsoever, can be inferred eitherfrom this information, or from any written recom-mendations, or from any other advice offered. Theuser of the product must test the product’s suitabilityfor the intended application and purpose. Sika re-serves the right to change the properties of itsproducts. The proprietary rights of third parties mustbe observed. All orders are accepted subject to ourcurrent terms of sale and delivery. Users must alwaysrefer to the most recent issue of the local Product DataSheet for the product concerned, copies of which willbe supplied on request.

Sarnacol-2172Spray-en-IE-(09-2019)-1-1.pdf

SIKA IRELAND LIMITEDBallymun Industrial EstateBallymunDublin 11, IrelandTel: +353 1 862 0709Web: www.sika.ieTwitter: @SikaIreland


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product data sheet sarnacol®-2172 spray · appearance / colour colour red shelf life 12 months...

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