275.12 Non-skinning, Pumpable Butyl Caulk

Description

275.12 is a premium quality, non-skinning, non-hardening, pumpable, butyl-based sealing caulk. It is formulated for sealing metal wall panels, standing roof seams, roof deck panels and expansion joints of similar and dissimilar materials without the need for a primer. It can be used in concealed joints in metal to metal assemblies. It is designed to be factory or field applied and is excellent for sealing joints against infiltration of air, dust, water and pollutants.

275.12 has excellent weathering properties and remains permanently elastic. It is flexible at low temperatures and will not dry out or crack on aging. It yields a 100% cohesive failure to most clean substrates when the bond is broken.

275.12 can be dispensed from a positive displacement pump (Graco 40:1 Bull Dog Pump or equivalent) or a manual applicator. The material cuts off easily at the nozzle and is not stringy. After application, the material develops a light film but remains soft and tacky so as to allow a good bond when two panels are butted together. Because it has residual tack, the sealant can create a bond between two panels up to six months after initial application.

Regulations & Specifications

Department of Defense

Meets UFC 3-110-03, Section 5-3.3.3 Seam Sealant requirements.

Federal Specification

TT-C-1796A, Type I, Class A.

LEED

Conforms to Leadership in Energy and Environmental Design 2009 for New Construction, Indoor Environmental Quality: Section 4.1, Low-Emitting Materials: Adhesive & Sealants (SCAQMD) Rule # 1168, VOC limits.

NAAMM

Meets standard SS-1a-68.

U.S.D.A

Is acceptable to the U.S. Department of Agriculture for use in meat and
poultry processing area under federal inspection.