1961 Gap Filler & Sealant 300g Cartridge

Stelmax 1961 and 1985 Gap Filler & Sealant are an easily applied PVC resin, pigment, plasticiser and solvent mix, that will gap fill and bond readily to form maintenance free joints of exceptional strength when used to bond and fill rigid and plasticised PVC.
Stelmax 1961 has a higher solid content is formulated to fill larger gaps. More typically, 1961 would be used for providing a seal between the window frame and the surround.
When dry the product will exhibit weathering, UV and chemical resistance similar to that of a good quality rigid PVC. Sealed joints will retain a degree of flexibility to cater for minor expansion and contraction of the substrate whilst remaining water and gas tight. The two products are available in many different colours other than the standard white.

DIRECTIONS FOR USE

Ensure surfaces to which the sealant is to be applied are clean and dry. Clean all areas with either Stelmax PVC Ultraclean or Thinners & Cleaning Fluid prior to application. Cut away the sealed tip of the 1961 300gm cartridge with a sharp blade, or alternatively, remove the cap from the 1965 132gm tube, invert and pierce the sealed membrane. Attach the appropriate tapered applicator nozzle relevant to either the 1961 or 1965. Trim the applicator nozzle to the desired aperture.

Run a continuous bead of sealant along the aperture and leave to cure. The width and depth of aperture to be filled and, the temperature and weather conditions will primarily determine the curing process at time of application, which could extend to a number of days, Do not attempt to smooth the product with fingers or by using any form of shaping tools During the curing process you will experience some degree of shrinkage of the product through solvent evaporation. Remove any excess material immediately with either Stelmax PVC Ultraclean or Thinners & Cleaning Fluid. To retain the product in a usable condition, seal the end of the tube by replacing the cap or seal the end of the tube and cartridge with polythene.