VINYCOL 1520 is a polyurethane adhesive specifically designed to bond synthetic materials such as PVC, polyurethane. It can be used together with hardeners DESMODUR RFE or RC or FIXDUR 100to improve performances. It has a high resistance to hydrolysis and very good heat resistance (suitable for assembly of inflatable boats, conveyor belts etc.). Also suitable for bonding Hypalon / Neoprene coated fabrics and for repairs.
Physical:
- Base: polyurethane
- Colour: pale yellow liquid
- Viscosity: approx. 2600 mPa.s
- Dry solids content: approx. 20 %
- Specific gravity: approx. 0,87
- Application temperature: above +20°C
- Relative humidity: below 60%
Values given for bonding PVC fabric to itself
Peel strength:
- After 24 hours at ambient conditions: 10 daN/5cm
- After 7 days at ambient conditions: 20 daN/5cm
- After 7 days at +70°C: 10 daN/5cm
Static heat strength after 7 days at +20°C (shear test for 15cm² pieces at strength of 80 daN: > 90°C).
Resistance to hydrolysis: 100°C in complete water immersion
- After 24 hours: 100% nominal value
- After 48 hours: 85% nominal value
- After 72 hours: 66% nominal value
Shelf life:
Up to 12 months in original closed pails, stored in a ventilated place at +15 to +30°C.
Kits of VINYCOL 1520 + FIXDUR 100 can be stored up to 18 months in the same conditions.
SURFACE TREATMENT
The surfaces to be bonded must be dry, clean and degreased. Abrade the surface with emery cloth, remove the ensuing dust by wiping with clean cloth moistened with Bostik cleaner.
BONDING PVC AND PU
Mix the adhesive with DESMODUR RFE or RC or FIXDUR 100, usually 8% in volume is needed, nevertheless according to the desired use and after carrying out prior tests different mixing ratio can be used.
Apply a first even coat of adhesive on both substrates to be bonded using a brush.
Allow the adhesive coats to dry for 10 minutes.
Apply the second coat of adhesive on both substrates; allow them to dry for 15-20 minutes according to ambient conditions.
Join the surfaces using as much pressure as possible or roll over the entire surface.
Maximum open time is 30 minutes.
BONDING HYPALON / NEOPRENE COATED FABRICS
Chemical treatment: abrade the surface with emery cloth, thoroughly remove dust, use ACTISOL SPW for halogenation (this procedure is used to assure compatibility between Vinycol 1520 and synthetic material). Allow to dry for at least one hour and up to several days (during this time stock in dust-free environment). Then bond the materials according to above-mentioned direction for use.
Cleaning
Clean splashes with SOLVENT REAC 6 or REAC 13
