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Tremco Spectrem 1 20oz Sausage Aluminum Stone
Tremco Spectrem 1 Aluminum Stone is a single-component, moisture-cure, ultra-low modulus silicone sealant in a 20 oz sausage. Crews rely on it for demanding dynamically moving joints in aluminum curtainwalls, precast concrete, metal panels, and window perimeters.
- Holds +100/-50% joint movement on high-expansion substrates
- Seals polyethylene-backed ExoAir air barrier transitions
- Keeps Greenguard Gold coverage for hospitals and schools
$13.29
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Tremco Spectrem 1 Aluminum Stone - 20 oz Sausage
Tremco Spectrem 1 Aluminum Stone is a high-performance, single-component, moisture-cure, ultra-low modulus silicone sealant in a 20 oz sausage. It seals demanding dynamically moving joints in aluminum curtainwalls, precast concrete panels, metal panels, and window perimeters. Ultra-low modulus keeps the bead elastic through high linear expansion, and a slight grain finish lets the bead zipper rather than fully tear if a joint fails.
Key Features
- Single-component moisture-cure ultra-low modulus silicone
- Joint movement capability +100% / -50% (ASTM C719)
- One product from perimeter caulk to expansion joints
- Slight grain finish zippers rather than fully tears
- Excellent adhesion to polyethylene-backed air barrier membranes
- Greenguard Gold for sensitive indoor environments
Applications
- Dynamically moving joints in aluminum curtainwalls
- Precast concrete panels with high linear expansion
- Metal panel and window perimeter joints
- ExoAir air barrier detailing and transitions
- Spectrem Simple Seal and Proglaze ETA transitions
Technical Specifications
| Property | Value |
|---|---|
| Joint movement | +100% / -50%, ASTM C719 |
| Hardness (Shore A) | +15, ASTM C661 |
| Tooling time | 10 to 20 min |
| Tack-free time | 30 to 60 min, ASTM C679 |
| Sag | Nil, ASTM C639 |
| Peel, aluminum and glass | 30 pli (5.2 kN/m), ASTM C794 |
| Tear strength, Die C | 40 pli (0.7 kN/m), ASTM D624 |
| Tensile at max elongation | 200 psi (1.38 MPa), ASTM D412 |
| Tensile at 100% elongation | 35 psi (0.24 MPa), ASTM C1184 |
| Cure / full adhesion | 7 to 14 days / 14 to 21 days |
Product documents: Spectrem 1 Technical Data Sheet (PDF)
Frequently Asked Questions
What chemistry does Tremco Spectrem 1 Aluminum Stone - 20 oz Sausage use?
It is a high-performance, single-component, moisture-cure, ultra-low modulus silicone. The sheet rates ASTM C719 joint movement at +100% / -50% with Shore A hardness +15 (ASTM C661), so the bead stays elastic on high-expansion substrates with no mixing required.
What joint movement range does Tremco Spectrem 1 Aluminum Stone - 20 oz Sausage accommodate?
ASTM C719 capability is +100% / -50%, and extension is rated +100. FEATURES call out ultra-low modulus as the driver for that high-elasticity range on the most demanding dynamically moving joints.
What air-barrier transitions take Tremco Spectrem 1 Aluminum Stone - 20 oz Sausage?
When detailing over ExoAir air barrier systems, it is the recommended sealant for an airtight envelope seal. Adhesion is excellent on most polyethylene-backed self-adhering membranes, with exceptional performance on the polyethylene face of ExoAir 110, 110AT, and TWF and on the cured surface of ExoAir 130 and 230. The sheet also recommends it with Spectrem Simple Seal, Proglaze ETA, Silicone Rubber extrusions, and over Nudura ICF.
What skin and tack times does Tremco Spectrem 1 Aluminum Stone - 20 oz Sausage show?
Tooling time (skin formation) is 10 to 20 minutes. Tack-free time is 30 to 60 minutes by ASTM C679. Cure runs 7 to 14 days, and full adhesion develops in 14 to 21 days after conditioning at 77 F (25 C) and 50% RH.
What peel and tear strengths does Tremco Spectrem 1 Aluminum Stone - 20 oz Sausage reach?
Peel strength on aluminum and glass is 30 pli (5.2 kN/m) by ASTM C794. Tear strength Die C is 40 pli (0.7 kN/m) by ASTM D624. Tensile at 100% elongation is 35 psi (0.24 MPa) by ASTM C1184, and tensile at max elongation is 200 psi (1.38 MPa) by ASTM D412.
What ASTM and federal specs does Tremco Spectrem 1 Aluminum Stone - 20 oz Sausage meet?
It meets ASTM C920 Type S, Grade NS, Class 100/50, Use NT, M, G, A, and O, plus ASTM C1248, ASTM C1382, and ASTM E84. Federal specs include TT-S-001543A Class A and TT-S-00230C Class A, Type II, along with CAN/CGSB 19.13-M87, MCG-2-40-B-N and EIMA Test Method 300.01.
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