Scotch-Seal

7886 Industrial Sealant (Cartridges)

Product Data SheetUpdated : March 1996Supersedes : November 1993

Product Description A grey, fast curing, cartridgegrade sealant having good"cut-off" properties andother excellent applicationcharacteristics.

It has good gap fillingproperties and cures to forma firm, flexible rubbery seal.Excellent adhesion isexhibited to galvanisedsteel, cold rolled steel andaluminium.

Physical PropertiesNot for specification purposes

Base Synthetic Elastomer

Solvent Toluene

Flash Point 7°C (closed cup)

Consistency Medium Paste

Solids Content 72% (typical)

Specific Gravity 1.17

Colour Grey

Shelf Life 12 months from date of despatch by 3M when stored in theoriginal carton at 21°C (70°F) & 50 % Relative Humidity

PerformanceCharacteristicsNot for specification purposes

Service TemperatureRange

-30°C to 71°C

Adhesion Excellent adhesion togalvanised steel, cold rolledsteel and aluminium.

Weathering Resistance Excellent

Fuel & Oil Resistance Poor

Pressure Tests The sealant has been testedto HVCA SpecificationDW142, 24 hours afterapplication - dryingconditions were 22°C and45% R.H.

The sealant conforms toClass D of the specification.See test report BSRIAContract 3501 report 4 May1983.

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Date : March 19967886 Industrial Sealant (Cartridges)

Directions for Use Surface Preparation:Surfaces must be clean, dryand grease free to ensuresatisfactory adhesion.Surface cleaning of metalscan be done by wipingScotch-Grip Solvent No. 2followed by wiping with aclean, dry cloth.

Application:This product is supplied incartridges which fit into the3M hand and air poweredcaulking guns and is alsoavailable as 9411 IndustrialSealant in 25 litre pails.

Coverage:Approximately 140 metresper litre of 3mm diameterbead (wet).Approximately 36 metresper litre of 6mm diameterbead (wet).

Application Temperature:16°C to 27°C (61°F to 80°F)

Approximate Drying Time:3mm wet beads of sealantbecome tack free inapproximately 15 minutesafter application.

Thorough drying to fullhardness occurs in 1-3 daysdepending on environmentalconditions. For pressuretests after 24 hours dryingtime see performancecharacteristics.

Clean Up:Use either Scotch-GripSolvent No. 1 or 2. Bothsolvents are highlyflammable. When usingsolvents for clean-up,ensure proper safetyprecautions are observed.

Applications Designed to seal jointsagainst the passage of air inlow, medium and highvelocity/pressure ductworkdistribution systems.

Storage Conditions Store under cool, dryconditions, at 16°C to 27°Cfor maximum storage life.

Health and SafetyInformation

Precautions:Highly flammable. Harmfulby inhalation. May causeeye irritation. Keep awayfrom heat. Keep away fromsources of ignition - NoSmoking. Avoid breathingvapours, eye contact andprolonged skin contact. Useonly in well ventilated areas.

First Aid:

Eye Contact:Rinse immediately withplenty of water and seekmedical advice.

Skin Contact:Wash with soap and water.

For further Health andSafety information, pleasecontact the ToxicologyDepartment at BracknellHead Office on (0344)858000.

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Date : March 19967886 Industrial Sealant (Cartridges)

Specifications Heat & VentilatingContractors AssociationSpecification DW142 forlow, medium and highpressure/velocity airsystems.

3M and Scotch-Seal are trademarks of the 3M Company.

Values presented have been determined by standard test methods and are average values not to be used for specification purposes.Our recommendations on the use of our products are based on tests believed to be reliable but we would ask that you conduct your own tests todetermine their suitability for your applications.This is because 3M cannot accept any responsibility or liability direct or consequential for loss or damage caused as a result of ourrecommendations.

Specialty Tapes & Adhesives 3M United Kingdom PLC 1996

3M United Kingdom PLC3M House,28 Great Jackson Street,Manchester,M15 4PA

Customer Service :

Tel 0161 236 8500Fax 0161 237 1105

3M Ireland3M House, Adelphi Centre,Upper Georges Street,Dun Laoghaire,Co. Dublin,Ireland

Customer Service :

Tel (01) 280 3555Fax (01) 280 3509