'3M Polyurethane Seam Sealer are high-solid adhesive 1K sealer products, which cure to a tough, permanently flexible material within 24 hours when exposed to atmospheric moisture.
(The speed of cure depends on bead thickness and environmental conditions). Temperature resistant from -40C to +90C (temporarily up to 120C).
Ideal for sealing medium and wide car body seams, welding seams or even suitable for use on wood or plastics. Can be applied directly to bare steel, can be used as a weld-through sealer. This application must be done whilst the product is still wet (within 35 mins of appliation).
The product must be left to cure (min 45 mins!) prior to application of waterbased base coats.
Excellent adhesion
Paintable with commonly used paint systems
Non-shrinking, non-flow
Excellent weathering properties, water, oil and petrol resistant
3M Part Number: 08694
