Product Description

Spectrem® 2 is a medium-modulus, single-component, high- performance, neutral-cure silicone sealant ideal for a variety of perimeter caulking and glazing applications.

Basic Uses

• Two-sided structural glazing • Perimeter and weather seals • Cap, heel and toe beads
• Curtain wall or window joints

Spectrem 2 may be used on substrates such as aluminum, glass, steel, painted metal, plastic, stone, concrete and brick. Spectrem 2 exhibits primerless adhesion to many common building materials.

All structural glazing applications must be reviewed and approved by Tremco Technical Services prior to the application of Spectrem 2. 

Applicable Standards

Spectrem 2 meets or exceeds the requirements of the following specifications:

• ASTM C920 Type S, Grade NS, Class 50, Use NT, M, G, A and O

• ASTM C1248
• U.S. Federal Specification TT-S-001543A (COM-NBS) Class A • U.S. Federal Specification TT-S-00230C (COM-NBS) Class A,

Type II
• CAN/CGSB 19.13-M87
• Black meets all of AAMA 802.3-92 (Type I and II), 805.2-94

(Group C), and 808.3-92


1/12-gal (300-mL) cartridges; 20-oz (600-mL) sausages;
2-gal (7.6-L) and 4.5-gal (17-L) pails and 55-gal (208.2-L) drums

All colors are not available in all package sizes. Contact Tremco Customer Service for more information.