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- Manufacturer: Bostik, Inc.
- Product Line: Bostik Transportation Adhesives
- Product: High Quality Adhesives and Sealants
- Industries: Maintenance, Repair, Overhaul | Transportation
- Authorized Countries: Canada | United States
Bostik 70-03A ISR
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Bostik® ISR 70-03A is an elastic bonding adhesive with a premium-quality silyl modified polymer (SMP) base formulated without solvents, isocyanates, or PVC materials. It has an open time of 45 minutes and a skin-forming time of 10 minutes.
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Specifications
Basic material: Silyl modified polymer (SMP)
Color: White, black, or gray
Temperature resistance: ā40°F to 248°F (ā40°C to 120°C)
Application temperature: 41°F to 95°F (5°C to 35°C)
Curing method: Moisture
Specific gravity: Approx 1.5 g/mL
Skin-forming time: Approx 10 min
Open time: Approx 45 min
Curing speed after 24 hrs: 0.125 in (3 mm)
Shore A hardness: ca. 60
Volume change: Less than 3%
Green strength: 500 Pa
Tensile stress at break: 390 psi
Elongation at break: ca. 200%
Shear stress: 400 psi
Tear propagation: Approx 17 N/mm
E-modulus (10%): 700 psi
UV and weather resistance: Excellent;
Primary Chemistry:
Silyl modified polymer (SMP)
Manufacturer
Product Line
Industries
Authorized Countries
Canada
United States
Overview
Bostik® ISR 70-03A is an innovative SMP adhesive and sealant from Bostik engineered for its durable performance and high green strength. With its silyl modified polymer base formulated free of solvents, isocyanates, and PVC, Bostik® ISR 70-03A is a neutral, odorless sealing agent meant for primerless adhesion applications. It is designed for demanding industrial, construction, and automotive applications, providing excellent adhesion to various substrates, including wood, glass, PVC, polyester, and a wide range of metals.
Bostik® ISR 70-03A has an open time of 45 minutes and a skin-forming time of approximately 10 minutes. Due to this, components should be assembled within 15 minutes of applying Bostik® ISR 70-03A, with an adhesive thickness of 2 mm for optimal results. Bostik® ISR 70-03A is a paste available in three colors (black, white, and gray), allowing for control over aesthetics and visual confirmation of successful application.
Features & Benefits
- Silyl modified polymer based sealant
- Odorless
- Fast curing
- High strength
- Good adhesion without a primer
- Durable
- Paintable
- High green strength and tensile strength
- Free of solvents, isocyanates, and PVC
- Can be used on aluminum, steel, zinc, brass, copper, powder-coated metal, glass, PVC, polyester, and wood
- Resistant to UV and aging
- Compatible with most industrial paint and lacquer systems
- Extrudable with handgun or air pressure gun
Problems Solved
Damage or failure of adhesive due to weather or UV exposure
Toxic concerns from harmful solvents, isocyanates, or other chemistries
Inferior adhesive solutions with poor aging properties and protection
Applications
Bostik® ISR 70-03A is a high-quality adhesive sealant that can be used successfully across a wide range of applications, including but not limited to the following:
Making elastic constructive joints
Elastic bonding and sealing: bus, caravan, train, and truck construction
Bonding of roofs on buses, trains, and trucks
Bonding of corner profiles of aluminum and polyester on trailers
Bonding of polyester parts on metal frames
Bonding of floor systems
Composite assembly
Sunroof assembly
General bonding and sealing
Related Applications
Maintenance, Repair, Overhaul
Transportation
Related Chemistries
Maintenance, Repair, Overhaul
Transportation
Related End Markets
Maintenance, Repair, Overhaul
Transportation
Global Supply Chain
Global Warehouse Network
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