BP-300 Non-Skinning Butyl

BP-300 is a non-skinning, non-hardening, permanently flexible gun grade compound. It maintains a positive airtight seal by remaining both permanently adhesive and flexible to all of the substrates that it is applied to. The sealant is non-staining and non-bleeding, but does not accept paint. Excellent adhesion to multiple substrates. Adheres to clean concrete, gypsum, metal, glass, plastic and wood surfaces without primer. Excellent gunnability, even at low temperatures. Flexible, even at extremely low temperatures (-40° F). Water resistant, even under immersion conditions Non-skinning and non-hardening.

Basic Use: 
ACOUSTICAL SEALANT:
Reduces sound transmission of partition systems. It will effectively increase the Sound Transmission Class (STC) value by as much as 65% by properly sealing partition openings.

ROOF PANEL RIB SEALANT: 
A good balance of cohesion and adhesion to painted and aluminized steel panels as manufactured on a roll forming machine without further cleaning, pretreatment or other surface preparation at erection temperatures from 20° F to 140° F.

VAPOR BARRIER SEALANT: 
Maintains a positive airtight seal by remaining both permanently adhesive and flexible to all substrates that it is applied onto, such as polyethylene vapor barrier films, wood, concrete, metal and foam boards. It is excellent for sealing roof drains and behind termination bar details for commercial roofing applications.

BEDDING SEALANT:
Used as a buck frame, threshold or bedding sealant when applied to metal or glass surfaces.

CURTAINWALL SEALANT 
Prevents air infiltration and water leakage to unexposed curtain wall joints.

Sold by the case. 30 per case.

*please add 10% to price if ordering less than full case

MSDS Sheet: http://www.smalleyandcompany.com/docs/msds/ADS%20BP300.pdf.