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Bostik 70-03A
Bostik® 70-03A is a high-strength adhesive sealant with primerless adhesion and low residual tack for elastic construction joints, transportation manufacturing, and general industrial sealing.
Fulfilled By ChemPoint
- Manufacturer: Bostik, Inc.
- Product Line: Bostik Transportation Adhesives
- Product: High Quality Adhesives and Sealants
- Industries: Maintenance, Repair, Overhaul | Transportation
- Authorized Countries: Canada | United States
Fulfilled By ChemPoint
Documents
Overview
Bostik® 70-03A is a premium-quality bonding polymer for sealing and bonding automotive roofing, floor systems, welded seams, trailer parts, and more. It provides an elastic bond between surfaces made from glass, PVC, polyester, wood, steel, aluminum, copper, zinc, brass, and more for application versatility.
Bostik® 70-03A can be applied to surfaces by extrusion with a handgun or an air pressure gun at temperatures between 40°F to 95°F (5°C to 35°C) and withstands temperatures ranging from −40°F to 200°F (−40°C to 93°C) upon cure. This adhesive compound gives excellent workability, providing formulators with an open time of 15 minutes and a skin-forming time of approximately 10 minutes, rapidly achieving a neutral, odorless seal with low residual tack.
Specifications
Product type: Adhesive sealant
Basic material: Silyl modified polymer (SMP)
Curing method: Moisture
Specific gravity: Approx 1.4 g/mL
Skin-forming time: Approx 10 min
Open time: Approx 15 min
Curing speed after 24 hrs: 3 mm (0.12 in)
Shore A hardness: ca. 50
Tensile strength at break: 450 psi
Elongation at break: ca. 340%
Lap shear strength (alum.): 280 psi (1.93 MPa)
Temperature resistance: −40°F to 200°F (−40°C to 93°C)
Temperature resistance: 200°F (93°C)
Application temperature: 40°F to 95°F (5°C to 35°C)
UV and weather resistance: Excellent
Packaging: 290 mL cartridges, 400 mL and 600 mL sausages
Primary Chemistry: Silyl modified polymer (SMP)
Features & Benefits
Silyl modified polymer adhesive
Neutral and odorless
Low residual tack
Excellent UV and weather resistance
Fast cure
Primerless
Does not contain solvents, isocyanates, or PVC
High green strength
Good workability
Compatible with industrial paints and lacquer systems
Paintable
Bonds steel, aluminum, zinc, brass, copper, coated metals, lacquered metals, PVC, glass polyester, wood, and more
Can be applied by handgun or air pressure gun
Problems Solved
Damage or failure of adhesive due to weather or UV exposure
Applications
Bostik® 70-03A is a high-quality adhesive sealant that can be used across a wide range of end applications, including but not limited to the following:
Elastic bonding in manufacture and assembly for the transportation industry (buses, caravans, trains, trucks, etc.)
Floor bonding
General assembly
General sealing
Bonding roofs on buses, trains, and trucks
Bonding metal frames
Sealing welded seams
Related Applications
Maintenance, Repair, Overhaul
Transportation
Related Chemistries
Maintenance, Repair, Overhaul
Transportation
Related End Markets
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