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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.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 -
Technical Data for Bostik 70-03A SKF
Overview
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1 Part or 2 Part
- 1-Part
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Material Form
- Paste
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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
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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
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Chemistry
- Solvent-Free - PVC-free, Isocyanate-free
- Silyl Modified Polymer (SMP) / MS Polymer - Silyl Modified Polymer (SMP)
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Application Method
- Dispenser - Air-pressure gun, Handgun
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Cure Method
- Moisture / Condensation Cure - Moisture cure
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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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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.
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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.
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Cure Temperature Test Methods
Cure Temperature | Cure Time Test Method |
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20°C | Cure rate after 24 hours, 0.125 in., ca. 3 mm, 70°F/20°C @ 50% R.H. |
Cure Time Test Methods
Cure Time | Test Method |
---|---|
Fast | |
>1,440 min | Cure rate after 24 hours, 0.125 in., ca. 3 mm, 70°F/20°C @ 50% R.H. |
Tack Free Time Test Methods
Tack Free Time | Tack Free Temperature | Test Method |
---|---|---|
10 min | 20°C | Skin Forming Time |
Green Strength Test Methods
Green Strength | Test Method |
---|---|
300 (Pa) | Physical Rheometer MC100 |
Tensile Strength Test Methods
Tensile Strength | Test Method |
---|---|
245 psi | Tensile Stress (100%) |
375 psi | Tensile Stress at Break |
Shear Strength Test Methods
Shear Strength | Type | Substrate |
---|---|---|
360 psi | Lap Shear Strength | Aluminum-Aluminum |
High Temperature Resistance Test Methods
High Temperature Resistance | Test Method |
---|---|
121°C | Temperature Resistance |
177°C | Temperature Resistance, (max 1/2 hr) |
Low Temperature Resistance Test Methods
Low Temperature Resistance | Test Method |
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-40°C | Temperature Resistance |
Elongation Test Methods
Elongation | Test Method |
---|---|
250 % | At Break |
Modulus Test Methods
Modulus | Test Method |
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475 psi | E-Modulus (10%) |
Shore A Hardness Test Methods
Shore A Hardness | Shore Hardness Test Method |
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55 | Approx. |
Specific Gravity Test Methods
Specific Gravity | Test Method |
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1.4 (g/ml) | Approx. |