Box Quantities:
- 12 Cartridge / Box

ISR 70-03 is a good compromise between an adhesive and a sealant. ISR 70-03 is suitable for making elastic constructive joints, which also require a high strength. ISR 70-03 is based on Silyl Modified Polymer (SMP). ISR 70-03 used with the Dual SMP® technology guarantees an increased and controlled cure speed and reliability in the production process and extends the application possibilities.

Applications

• Elastic bondings and sealings in e.g. bus-, caravan-, train- and truck construction.
• Bonding and sealing of sunroof systems.
• Bonding of roofs on busses, trains, and trucks.
• Bonding of corner profiles of aluminum or polyester on trailers.
• Bonding of polyester parts on metal frames.
• Bonding of floor systems.
• Sealing welded seams.

Features

• Solvent-, isocyanate- and PVC free.
• Very good UV-resistance and ageing properties.
• In general good adhesion on several substrates without the use of a primer.
• Permanent elastic within temperatures from -40°C till +120°C.
• Neutral, odourless and fast curing.
• Paint compatible with most industrial paint- or lacquer systems, both alkyd resin and dispersion based (due to the large scale of different types of industrial paints a paint compatibility test is recommended).
• Paintable after skin forming (wet on wet); this will not influence the curing speed.

Adhesion

• In general ISR 70-03 adheres well without primer on clean, dry, dust- and grease free substrates of aluminum, stainless steel, galvanized steel, zinc, copper, brass, powder coated metal, most lacquered metal surfaces, glass, PVC, polyester (GRP), painted and lacquered wood, etc. No adhesion on untreated polyethylene, polypropylene and teflon. In those cases where due to great thermal or physical loads, especially under wet conditions, high adhesion demands are needed, the use of Simson Prep M is recommended.
• Prep M degreases and prepares the surface of the substrate in one step. On plain, untreated wooden surfaces and other porous substrates Simson Prep P is recommended. For more details concerning Prep M and Prep P consult the specific technical information data sheets. For not mentioned substrates and additional information consult Bostik.

Method of use

• ISR 70-03 can easily be extruded with a hand- or air pressure gun at temperatures between +5°C and +35°C. In sealing applications ISR 70-03 should be tooled or smoothened within 10 minutes (at 20°C/50% R.H.) with a spatula or putty knife, occasionally moistened with a soap solution.
• Avoid soap solution penetrating between joint sides and sealant, because this will create loss of adhesion. In bonding applications the substrates have to be assembled within 15 minutes (at 20°C/50% R.H.) after applying ISR 70-03. In general an adhesive thickness of 2 mm is recommended. At a temperature of 20°C and a relative humidity of 50% ISR 70-03 can be painted with the most industrial paints already 10 minutes after application. Best adhesion of paint coats is generally obtained if painted within 4 hours after applying ISR 70-03. Cleaning tools or removing uncured residue of ISR 70-03 can be done with a clean colourless cloth, wetted with Simson Liquid 1. It is recommended to make a trial first to check possible attack of the substrate by Liquid 1.