BlastBlock soundproofing materials

BlastBlock is a mass loaded vinyl (MLV) soundproofing membrane, supplied in three grades. BB830, the standard grade, weighs nominally 5 kg/m² at approximately 3 mm thick; manufacturer data, reference BB830/20/v2, gives STC 32 (ASTM E413) for the material alone and up to STC 68 in a double-stud assembly with mineral wool. BB830FR is the same sheet with an independent fire classification. BB830LF, the low-frequency grade, is a heavier sheet at nominally 10 kg/m² and approximately 5 mm, rated Rw 32 dB (ISO 717-1). All three install in walls, ceilings, floors, ductwork and machine enclosures, and cut with a utility knife. Stock is held in Bangkok.

Those are laboratory values. Field performance is normally lower — see the STC table by wall build-up.

Mass loaded vinyl

Installation accessories

Performance is decided by how completely the assembly is sealed. An open area of roughly 1% of a wall can cap transmission loss at around 20 dB whatever the build-up, which is why sealant, adhesive and putty pads are not optional extras.

Ordering

MLV is sold in whole 5 m² rolls. Cut-to-length is quoted as project work.
Free delivery nationwide on orders over ฿20,000 excl. VAT.
If you collect, it is ready within 1 working day of cleared payment. If we deliver, you will typically have it in 3–5 working days.
Sales and delivery within Thailand only. Full Thai tax invoice on request.