PR1425B2-60Z   SEALANT: 654 SEMKIT,6OZ

PR-1425 Class B is an aircraft windshield and canopy sealant. It has a service temperature

range from -65 to 250 deg F, with intermittent excursions up to 275 deg F. This material is

designed for fillet sealing of properly prepared glass, polycarbonate, acrylic and other aircraft

sealing applications. This product is specifically formulated not to craze substrates. The cured

sealant exhibits excellent-resistance to UV and weather exposure. PR-1425 Class B is a two-part,

dichromate cured polysulfide compound. The uncured material is a low sag, thixotropic paste,

suitable for application by extrusion gun or spatula. This sealant has excellent adhesion to common

aircraft substrates.

Tech Information

FMS-3065 - Class B-1/2, -2 - Lockheed - Fort Worth, GAC146BH -1/2, -2 Gulfstream, MEP 09-037 - B-1/2, -2 Embraer, MFM0027 - Type B-1/2, -2 Mitsubishi Heavy Industries

Specification

Container Size: 6 oz

Form: Liquid (Part A), Solid (Part B)

Color: Black (Part A/B)

Composition:

>=20 to <=30% N, N-Dimethylacetamide,

>=20 to <=50% Calcium Dichromate,

>=5 to <=10% Talc Not Containing Asbestiform Fibers,

>=1 to <=5% Magnesium Carbonate,

>=1 to <=5% Kaolin, <=1% Carbon Black (Part A),

>=5 to <=10% Calcium Carbonate,

>=5 to <=10% Carbon Black, >=1 to <=5% Epoxy Resin,

>=1 to <=5% Terphenyl Hydrogenated (Part B)

Curing Time: 7 Days

Specific Gravity: 1.35 (Part A), 1.34 (Part B)

Viscosity: >21 cSt (Part A)

VOC Content: 597.8 g/L (Part A), 40 g/L (Part B)

Shelf Life: 9 Months

Flash Point: 93.33 deg C (Part B)

Boiling point: 100 to 166.11 deg C (Part A)

Mixing Ratio: 10:100

Application Time: 2 hr

UN3077