Bostik 70-03A SKF

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Description for Bostik 70-03A SKF

A high quality multipurpose adhesive and sealant, longer open time allows for use in larger bonding applications, good adhesion to a variety of surfaces, solvent, isocyanate, and PVC-free, very good UV resistance and aging properties.

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Application Type	Bonding, Sealant
1 Part or 2 Part	1-Part
Material Form	Paste
Substrate	Aluminum, Copper, Glass, Most lacquered metal, Polyester (GRP & FRP), PVC, Painted wood, Stainless steel, Brass, Zinc, Galvanised steel, Powder coated metal, Lacquered wood
Industry	Caravan, Roofs on trains, Roofs on buses, Roofs on trucks, Polyester on trailers
Manufacturer	Bostik
Chemistry	Silyl Modified Polymer (SMP), PVC-free, Isocyanate-free, Solvent-free
Cure Method	Moisture cure
Application Temperature (°F)	40 to 95
Cure Temperature (°C)	20
Odorless	Odor Details: Odorless
Cure Time (min)	Fast, >1,440
Color	Black, Gray, Neutral, White
High Temperature Resistance (°C)	121, 177
Low Temperature Resistance (°C)	-40

Best Practices for Bostik 70-03A SKF

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Technical Data for Bostik 70-03A SKF

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Overview

Application Type
- Adhesive - Bonding
- Sealant
1 Part or 2 Part
- 1-Part
Material Form
- Paste
Substrate
- Glass
- Metal - Powder coated metal, Most lacquered metal
- Aluminum
- Copper
- Brass
- Zinc
- Polyvinyl chloride (PVC) - PVC
- Wood - Painted wood, Lacquered wood
- Polyester - Polyester (GRP & FRP)
- Stainless Steel
- Galvanized Steel - Galvanised steel
- Other - A variety of surfaces, Many substrates
Industry
- Other Transportation - Sunroof systems
- Rail - Roofs on trains
- Bus - Roofs on buses
- Trucks - Roofs on trucks
- Trailer - Polyester on trailers
- Automotive - Caravan
- Industrial - Corner profiles of aluminium, Polyester parts on metal frames, Welded seams
- Construction - Floor systems
- Other - Multipurpose, Larger bonding applications
Chemistry
- Solvent-Free - PVC-free, Isocyanate-free
- Silyl Modified Polymer (SMP) / MS Polymer - Silyl Modified Polymer (SMP)
Application Method
- Dispenser - Air-pressure gun, Handgun
Cure Method
- Moisture / Condensation Cure - Moisture cure
Color
- Black
- Gray
- White
- Other - Neutral

Specifications

Cure Specs

Application Temperature (°F)	40 to 95
Cure Temperature (°C)	20	Test Method
Cure Time (min)	Fast, >1,440	Test Method
Open Time Temperature (°C)	20
Tack Free Time (min)	10	Test Method
Open Time (min)	<30, Longer

Bond Strength

General Bond Strength (psi)	Good, High
Shear Strength (psi)	360	Test Method
Green Strength (psi)	300 (Pa)	Test Method
Tensile Strength (psi)	245, 375	Test Method

Material Resistance

UV Resistance	Excellent, Very Good
Environmental Resistance	Excellent Weather Resistance
High Temperature Resistance (°C)	121, 177	Test Method
Low Temperature Resistance (°C)	-40	Test Method
Moisture/Humidity Resistance	Moisture/humidity resistance

Hardness

Shore A Hardness	55	Test Method
Elongation (%)	250	Test Method
Flexibility	Permanently elastic
Modulus (psi)	475	Test Method

Other Properties

Specific Gravity	1.4 (g/ml)	Test Method

Business Information

Shelf Life Details	70-03A-SKF may be stored for 12 months in closed (unopened) sausages in a dry place at temperatures between 40°F and 90°F (5°C and 30°C).
Shelf Life Temperature (°F)	40 to 90
Shelf Life (mon)	12

Not Good For

Don't Use With	Untreated polyethylene, Polypropylene, Teflon

Best Practices for Bostik 70-03A SKF

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1. Application
  
  Bostik 70-03A-SKF can easily be extruded with a handgun or air-pressure gun at temperatures between 45°F to 100°F (5°C to 35°C).
  
  Bostik 70-03A-SKF can easily be extruded with a handgun or air-pressure gun at temperatures between 45°F to 100°F (5°C to 35°C).
  
  In bonding applications, the substrates have to be assembled within 25 minutes (at 20°C/50% R.H.) after applying 70-03A-SKF. In general, an adhesive thickness of 0.062-in. or 1/16-in. (2 mm) is recommended.
2. Clean-Up
  
  Cleaning tools or removing uncured residue of Bostik® 70-03A-SKF can be done with a clean white/colorless cloth, moistened with IPA (Isopropyl alcohol). Check substrate compatibility with IPA (Isopropyl alcohol) before proceeding.
Comparable Materials for Bostik 70-03A SKF

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Spec Engine^® Results
- Simson ISR 70-09(Bostik)
  High tack, high green strength adhesive / sealant; low electrical conductivity; neutral cure; solvent free; low volume shrinkage.
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