■ RoHs compliance: Yes
One component adhesive/sealant
Cures at room temperature when exposed to moisture in the air.
Alkoxy cure system,
Non-sag, paste consistency
All surfaces must be clean and dry. Degrease and wash off any contaminants that could impair adhesion. Suitable solvents include isopropyl alcohol, acetone or methyl ethyl ketone. Good unprimed adhesion may be obtained on a variety of substrates, including enameled and painted steel, aluminum, ceramics, glass and certain plastics. Substrates to which good adhesion is normally not obtained include PTFE, PE, PP and related materials. Apply a bead of BN-RT250B Adhesive/ Sealant to one of the prepared surface, and then quickly cover with the substrate to be bonded. Very deep sections will take longer to cure completely.
■ Cure time
After skin formation, cure continues inward from the surface. Cure time is extended at lower humidity levels. Before handling and packaging bonded components, users are advised to wait a sufficiently long time to ensure that the integrity of the adhesive seal is not affected. This will depend on many factors and should be determined by the user for each specific application.