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Description for Bostik 940A Fast Set Adhesive/Sealant
One component; fast setting hybrid polymer; UV resistant; superior adhesion to porous and non-porous surfaces; long open time.Application Type Bond, Seal 1 Part or 2 Part 1 Part Material Form Paste Substrate Copper, Nonporous Substrates, Porous, Fiberglass, Glass, Brass, Zinc, Polyester, PVC, EPDM rubber, Galvanized steel, Stainless Steel, painted or lacquered wood., FRP, Aluminum, Galvanized steel Industry Marine Manufacturer Bostik Chemistry SMP (Silyl Modified Polymer) Cure Method Room Temperature Cure Cure Temperature (°C) 25, 25 Cure Time (min) 1,440 to 2,880, 20,160 High Temperature Resistance (°C) 100, Outstanding Low Temperature Resistance (°C) Outstanding, -40 -
Technical Data for Bostik 940A Fast Set Adhesive/Sealant
Overview
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1 Part or 2 Part
- 1 Part or 2 Part - 1 Part
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Material Form
- Paste
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Substrate
- Non-Porous Substrates - Nonporous Substrates
- Porous Substrates - Porous
- Fiberglass
- Glass
- Copper
- Brass
- Zinc
- Aluminum
- Galvanized - Galvanized steel
- Polyvinyl chloride (PVC) - PVC
- EPM/EPDM - EPDM rubber
- Wood - painted or lacquered wood.
- Composites - FRP
- Polyester
- Galvanized Steel
- Stainless Steel
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Industry
- Other Transportation - Hull fittings
- Marine
- Industrial - Portholes, Rub-rails
- Construction - Deck Hardware
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Chemistry
- Silyl Modified Polymer (SMP) / MS Polymer - SMP (Silyl Modified Polymer)
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Application Method
- Dispenser - Gun
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Cure Method
- Room Temperature / Air Dry - Room Temperature Cure
Specifications
Cure Specs
Application Temperature (°F) 40 to 95 Cure Temperature (°C) 25, 25 Test Method Cure Time (min) 1,440 to 2,880, 20,160 Test Method Set Time (min) Fast Tack Free Time (min) 35 Test Method Work / Pot Time (min) Longer, 45 Test Method Bond Strength
General Bond Strength (psi) Superior Green Strength (psi) Excellent, 2.3 (lbs. - force/ft2) Test Method Tensile Strength (psi) 400, 450, 375 Test Method Material Resistance
UV Resistance Excellent Environmental Resistance Excellent High Temperature Resistance (°C) 100, Outstanding Low Temperature Resistance (°C) Outstanding, -40 Hardness
Shore A Hardness 55 Test Method Elongation (%) 225 Test Method Flexibility Flexible, Permanent elastic Other Properties
Specific Gravity 1.4 (g/ml) Test Method Business Information
Shelf Life Details When stored between 40°F to 80°F (5°C to 27°C), Bostik® Marine 940A has a shelf life 12 months (sausages). Expiration date determined from the lot number printed on each sausage. Shelf Life Temperature (°F) 41 to 81 Shelf Life (mon) 12 -
Best Practices for Bostik 940A Fast Set Adhesive/Sealant
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Clean-Up
Use Bostik® Hand & Tool Towels to clean excess sealant from all surfaces and tools while still uncured. Remove cured sealant carefully from surfaces using appropriate mechanical methods.
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Comparable Materials for Bostik 940A Fast Set Adhesive/Sealant
Spec Engine® Results
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MS359A Grey(PermaBond)A single-part, room temperature curing MS polymer adhesive. It is ideal for use on a wide variety of substrate materials and is ideal for potting and sealing electronic components.
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Flex 310 M Classic MS-Polymer(WEICON)Adhesive and sealant is strong, sandable, has outstanding aging stability and good resistance to UV rays. It is resistant to freshwater and salt water and is free of silicone, isocyanate, halogens or solvents.
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Closest Results from this Manufacturer
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940 Fast Set Adhesive/Sealant(Bostik)One component; fast setting hybrid polymer; UV resistant; superior adhesion to porous and non-porous surfaces.
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Cure Temperature Test Methods
| Cure Temperature | Cure Time Test Method |
|---|---|
| 25°C | Uncured, @77°F/50%RH/0.125" |
| 25°C | AFTER 14 DAYS CURE AT 77°F AND 50% RH |
Cure Time Test Methods
| Cure Time | Test Method |
|---|---|
| 1,440 to 2,880 min | Uncured, @77°F/50%RH/0.125" |
| 20,160 min | AFTER 14 DAYS CURE AT 77°F AND 50% RH |
Tack Free Time Test Methods
| Tack Free Time | Test Method |
|---|---|
| 35 min | Uncured |
Work / Pot Time Test Methods
| Work / Pot Time | Test Method |
|---|---|
| Longer | |
| 45 min | Uncured |
Tensile Strength Test Methods
| Tensile Strength | Cure Time | Cure Temperature | Cure Humidity | Substrate | Test Method |
|---|---|---|---|---|---|
| 400 psi | 20,160 min | 25°C | 50 % | Aluminum-to-Aluminum | @ 100%., after 14 days cure at 77°F and 50% RH, 0.08", speed—2-in./min. |
| 450 psi | 20,160 min | 25°C | 50 % | Aluminum-to-Aluminum | @ Break, after 14 days cure at 77°F and 50% RH, 0.08", speed—2-in./min. |
| 375 psi | 20,160 min | 25°C | 50 % | Aluminum-to-Aluminum | 0.08", speed—2-in./min, AB481after 14 days cure at 77°F and 50% RH |
Green Strength Test Methods
| Green Strength | Test Method |
|---|---|
| Excellent | |
| 2.3 (lbs. - force/ft2) | Uncured, @ 0.125-in. thick, without sag |
Elongation Test Methods
| Elongation | Test Method |
|---|---|
| 225 % | after 14 days cure at 77°F and 50% RH |
Shore A Hardness Test Methods
| Shore A Hardness | Shore Hardness Test Method | Hardness Temperature |
|---|---|---|
| 55 | after 14 days cure at 77°F and 50% RH | 25°C |
Specific Gravity Test Methods
| Specific Gravity | Temperature | Test Method |
|---|---|---|
| 1.4 (g/ml) | 25°C | after 14 days cure at 77°F and 50% RH |
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