Tremco Spectrem 1 10oz Cartridge White

Tremco Spectrem 1 White is a single-component, moisture-cure, ultra-low modulus silicone sealant in a 10.1 oz cartridge for aluminum curtainwalls, precast concrete panels, metal panels, and window perimeters. With strong adhesion to difficult-to-adhere-to substrates, it lets one product cover perimeter caulking through expansion joints.

Moves +100/-50% with aluminum, precast, and metal panel joints.
Weathers driving rain, ozone, and UV in all climate zones.
Meets Greenguard Gold for sensitive indoor environments.

$11.14

Availability: In stock ( 8 Available )

Details

Spectrem 1 White, 10 oz cartridge

Tremco Spectrem 1 is a single-component, moisture-cure, ultra-low modulus silicone sealant for demanding moving joints. It is used on aluminum curtainwalls, precast concrete panels, metal panels, and window perimeters. It holds +100/-50% movement, weathers driving rain and UV, and has a slight grain finish that zippers rather than fully tears if a joint fails.

Key Features

Single-component moisture-cure silicone
Ultra-low modulus, +100/-50% movement
Slight grain finish that zippers rather than fully tears
Weather-resistant in driving rain and UV
Greenguard Gold

Applications

Aluminum curtainwalls and metal panels.
Precast concrete panel joints.
Window perimeters.
Detailing over ExoAir air barrier membranes.

Technical Specifications

Property	Value
Sealant type	ASTM C920 Type S, Grade NS, Class 100/50
Cartridge size	10.1 oz (300 mL)
Color	White
Joint movement	+100% / -50% (ASTM C719)
Hardness (Shore A)	+15 (ASTM C661)
Tooling time	10 to 20 min (skin formation)
Tack-free time	30 to 60 min (ASTM C679)
Cure time	7 to 14 days
Full adhesion	14 to 21 days
Peel strength, aluminum and glass	30 pli (5.2 kN/m), ASTM C794
Tensile at 100% elongation	35 psi (0.24 MPa), ASTM C1184
Tensile at max elongation	200 psi (1.38 MPa), ASTM D412

Documents

Spectrem 1 Technical Data Sheet

Frequently Asked Questions

What air barrier membranes does Spectrem 1 bond to when detailing over ExoAir?
Tremco names it the recommended sealant over the ExoAir Air Barrier system for an airtight envelope seal, with excellent adhesion to most polyethylene-backed, self-adhering membranes. Performance is exceptional on the polyethylene face of ExoAir 110, 110AT, and TWF and on the cured surface of ExoAir 130 and 230.

What tooling and tack-free times should a crew expect with Spectrem 1?
Tooling time, measured as skin formation, is 10 to 20 minutes, and tack-free time is 30 to 60 minutes under ASTM C679. Cure takes 7 to 14 days, and full adhesion develops in 14 to 21 days.

What joint movement can Spectrem 1 take on curtainwall and precast joints?
It is rated +100% / -50% under ASTM C719 and meets ASTM C920 Type S, Grade NS, Class 100/50, Use NT, M, G, A, and O. Its ultra-low modulus, with Shore A hardness of +15 and 35 psi tensile at 100% elongation, suits high-expansion materials such as aluminum curtainwalls, precast concrete panels, and metal panels.

What does the slight grain finish of Spectrem 1 do in a joint?
The slightly grainy texture lets the sealant zipper rather than fully tear if failure occurs. Tear strength (Die C) is 40 pli (0.7 kN/m) under ASTM D624, and peel strength on aluminum and glass is 30 pli (5.2 kN/m) under ASTM C794.

What surface conditions and exposures limit Spectrem 1?
Tremco says not to apply it to damp or contaminated surfaces, and it is not intended for continuous water immersion. Once cured, it resists driving rain, ozone, ultraviolet light, and temperature extremes, and it should be used with adequate ventilation.

What certifications support Spectrem 1 on hospital and school projects?
Greenguard Gold certification supports use in sensitive indoor environments, including hospitals and schools. It also meets TT-S-001543A Class A and TT-S-00230C Class A, Type II, shows no stain on white marble under ASTM C1248, and has been tested in wall assemblies meeting ASTM E2357 air leakage and NFPA 285.

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