Please note - Silmid will be closed on Friday, 18th April 2025 and Monday, 21st April 2025 for the Easter Bank Holiday. We will reopen as usual on Tuesday, 22nd April 2025. Thank you for your continued support.
3M AC-251 B-1/2 Aerospace Sealant
3M AC-251 Class B-2 Aerospace Sealant was a two-part, quick curing, polysulfide based canopy and windshield sealant. 3M have rationalised their sealant offering, and this product is no longer available. We do continue to offer sealants from 3M Aerospace, as well as Naftoseal and PPG Aerospace.