Description
NuFlex® 302 General Purpose Silicone Sealant is a medium modulus one-component acetoxy cure, non-sag caulking material. NuFlex® 302 General Purpose Silicone Sealant cures to form a sturdy, rubbery solid upon exposure to moisture in the air. Due to its non-sag properties, the sealant can be applied overhead or on sidewall joints and surfaces without sagging, slumping, or running off. It adheres to most non-porous construction substrates.
NuFlex® 302 has excellent resistance to weathering, vibration, moisture, ozone, and extreme temperatures. It may be applied in sub-zero temperatures without loss of extrusion or physical property characteristics and is effective to -46°C (-50°F)
Features:
- Acetoxy cure
- 100% silicone
- NuFlex 302 has achieved GREENGUARD GOLD Certification
- Certified by NSF
- Water-resistant before, during, and after cure
- RTV (Room Temperature Vulcanization)
- Adheres to many substrates
- Wide temperature range performance
- 50-year durability
- Can be applied in sub-zero temperatures
Bonds to:
- Metal
- Laminates
- Glass
- Wood
- Silicone resin
- Vulcanized silicone rubber
- Ceramic
- Natural and synthetic fibres
- Painted surfaces
- Most plastics
Basic uses include caulking and sealing around:
- Form-in place gaskets where there is no oil contact
- Duct joints
- Areas that need weather stripping
- Sinks, basins, showers, and tubs
Other uses include:
- General repairs on a variety of substrates
- Non-load-bearing bonding
- Non-stick coating for concrete moulds and forms
Available sizes and colours:
| SKU | Colour | Size | Format |
|---|
| 30280 | Clear | 83 mL | Squeeze tube |
| 30281 | White | 83 mL | Squeeze tube |
| 30283 | Black | 83 mL | Squeeze tube |
| 30200 | Clear | 300 mL | Cartridge |
| 30201 | White | 300 mL | Cartridge |
| 30202 | Aluminium | 300 mL | Cartridge |
| 30203 | Black | 300 mL | Cartridge |
| 30204 | Bronze | 300 mL | Cartridge |
| 30205 | Almond | 300 mL | Cartridge |
| 30206 | Grey | 300 mL | Cartridge |
| 30207 | Brown | 300 mL | Cartridge |
| 30208 | Translucent | 300 mL | Cartridge |
| 30216 | Mid brown | 300 mL | Cartridge |
| 30212 | Low volatile blue | 300 mL | Cartridge |
Compare
| Specific Gravity (g/mL) | 1.01 | 1.01 | 1.12 |
| Extrusion Rate (3.2 mm orifice, 90 psi) g/min | 400 | 335 | remove |
| Flow Rate | Nil, non- sag | Nil, non- sag | Nil, non- sag |
| Tack free time (min) (25°C, 50% RH) | 10-20 | 17 | 25 |
| ASTM C 611 – Durometer Hardness, Shore A | 25 | 26 | 20 |
| ASTM D 412 Die C – Tensile Strength, MPa (psi) | 2.25 (325) | 2.4 (350) | 1.53 (200) |
| ASTM D 412 Die C – Elongation, percent | 550 | 600 | 700 |
| ASTM D 746 – Brittle Point, °C | -62 | -62 | – |
| ASTM D 257 – Volume Resistivity , OHM-cm | 1.5×10¹⁵ | – | – |
| ASTM D 149 – Dielectric Strength, kV/mm (V/mil) | 21.7 (550) | – | – |
| ASTM D 150 – Dielectric Constant at 60 Hz, 100 Hz, and 100 kHz | 2.8 | – | – |
| ASTM D 150 – Dissipation Factor at 60 Hz, 100 Hz, and 100 kHz | 0.0015 | – | – |
| ASTM C 603 – Application Temperature, °C | -29 – 50 | -29 – 50 | -29 – 50 |
| ASTM C 1299 – Service Temperature, °C | -51 – 149 | -51 – 220 (Intermittent up to 316) | -51 – 149 |
| ASTM S 2137 A – Volume Coefficient of Thermal Expansion | 0 to 100°C 9.3 x 10⁴ | 0°-100°C 9.3×10⁴ | – |
| Thermal Conductivity, Cal/(s)(°C)(cm) | 4.5 x 10⁴ | 4.5×10⁴ | – |
| Galvanized Steel | Yes | Yes | Yes |
| Stainless Steel | Yes | Yes | Yes |
| Glass | Yes | Yes | Yes |
| Wood | Yes | Yes | Yes |
| Silicone | Yes | Yes | Yes |
| Masonry | – | – | Yes |
| Ceramic | Yes | Yes | Yes |
| Natural and Synthetic Fibers | Yes | Yes | Yes |
| Aluminium | Yes | Yes | Yes |
| PVC | – | – | Yes |
| CPVC | – | – | Yes |
| 100% Silicone | Yes | Yes | Yes |
| Neutral Cure | – | – | Yes |
| Acetoxy Cure | Yes | Yes | – |
| Freeze-thaw Stable | Yes | Yes | Yes |
| Water Resistant | Yes | Yes | Yes |
| Paintable | – | – | – |
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