Everkem SilTex 40 Siliconized Acrylic Latex Caulk
Everkem
$69.00
In stock. Usually ships in 1-2 business days.
Volume pricing on 10+ units.
Cases ship free within the contiguous US.
The Everkem Diversified Products SilTex 40 is a siliconized acrylic latex caulk designed for long-term building envelope sealing. This 10.1-ounce cartridge delivers 40+ year durability with strong, flexible adhesion that works on both interior and exterior applications. The formula meets ASTM-C834 standards for building envelope performance and carries ASTM-G21 certification for mold and mildew resistance.
The caulk features low VOC content at just 16 g/L, making it compliant with LEED v4 emissions requirements and suitable for green building projects. You can paint over it once cured, and the mold-resistant formula holds up in high-moisture environments. The siliconized latex blend provides better flexibility than standard acrylic caulks while maintaining paintability that pure silicone lacks.
This is the go-to caulk for window and door perimeter sealing, trim work, and general construction gaps where you need both weather resistance and the ability to paint. Works well for contractors who need one product that handles both rough framing gaps and finish work where appearance matters.
Technical Details
Key Specs
| Chemistry | Siliconized acrylic latex |
|---|---|
| Durability | 40+ year |
| ASTM standards | Meets ASTM-C834; tested to ASTM-G21 |
| LEED v4 emissions | Tested (CDPH / CA Section 01350) |
| VOC content | 16 g/L |
| Colors | Clear, White |
Full Specifications
Typical Uncured Properties
| Chemistry | Siliconized acrylic latex |
|---|---|
| Uncured state | Glossy paste |
| Odor | Low acrylic odor |
| Application temperature | 45°F to 120°F (7.2°C to 48.9°C) |
| Tooling time | 10 to 15 minutes |
| Full cure time | 7 to 14 days |
| Shelf life | 1 year |
Typical Cured Properties
| Cured state | Rubbery solid |
|---|---|
| ASTM-G21 | Tested — Standard Practice for Determining Resistance of Synthetic Polymeric Materials to Fungi |
| ASTM-C834 | Meets ASTM-C834 — Standard Specification for Latex Sealants |
| LEED v4 emissions | Tested to CDPH Standard Method / CA Section 01350 |
| Service temperature | -30°F to 180°F (-34.4°C to 82.2°C) |
| Paintability | Paintable with latex paint after 2 hours; oil-based paint after 24+ hours |
| Shrinkage | Low to moderate |
| Joint movement capability | Low |
| VOC content | 16 g/L |
Curing conditions: 75°F (24°C) and 50% relative humidity.
Available colors: Clear, White
Applications
- Kitchen and bath tile, sinks, tubs, and counters
- Painted joints, cracks, and seams
- Baseboards, molding, and interior window and door frames
- Sealing wood, masonry, concrete, brick, drywall, metal, and glass for interior or exterior use
Advantages
- 40+ year durability
- Tested to ASTM-G21 (mold and mildew resistance)
- Meets ASTM-C834 performance criteria
- LEED v4 emissions compliant (CDPH Standard Method / CA Section 01350)
- Paintable
- Mold and mildew resistant
Limitations
- Not for prolonged water immersion
- Not for deep joints
Compliance & Standards
CSI specified divisions
- 07 90 00 — Joint Protection
- 07 92 00 — Joint Sealants
Applicable standards
- ASTM-G21 — Standard Practice for Determining Resistance of Synthetic Polymeric Materials to Fungi
- ASTM-C834 — Standard Specification for Latex Sealants
EcoSeal (low-VOC) compliance
- CDPH Standard Method / CA Section 01350 Emissions Testing for LEED v4 Compliance
- V.O.C. Content: 16 g/L
Sizes & Part Numbers
| Part # | Description | Packaging | Color |
|---|---|---|---|
| ST40-10W | SilTex 40 — 10.1 fl. oz. (298.7 mL) squeeze tube | 12 tubes/case | White |
| ST40-10C | SilTex 40 — 10.1 fl. oz. (298.7 mL) squeeze tube | 12 tubes/case | Clear |
| ST40-5W | SilTex 40 — 5.5 fl. oz. (162.65 mL) squeeze tube | 12 tubes/case | White |
| ST40-5C | SilTex 40 — 5.5 fl. oz. (162.65 mL) squeeze tube | 12 tubes/case | Clear |
Equivalent Products from Other Brands
Switching brands? This Everkem product is a functional equivalent to the competitor SKUs listed below per Everkem’s published Product Cross Reference. Formulations, cure times, and exact specs vary by manufacturer — confirm your project’s spec requirements before substituting.
| Brand | Part Number | Product Name |
|---|---|---|
| Boss | 36001 | Boss 360 35 Year Sealant Siliconized Latex Caulk |
| Boss | 36251 | Boss 362 100% Acrylic Tub "N" Tile Caulk |
| DAP | 18002, 18242 | Dap Kwik Seal Kitchen and Bath Adhesive Caulk |
| Oatey | 25625, 25615 | Hercules Plumber's Caulk |
| Red Devil | 0406 | Red Devil Kitchen and Bath Siliconized Acrylic Caulk |
| Sika | 675143 | SikaTile 880 Siliconized Acrylic Caulk |
| TiteBond | 8331 | TiteBond Painter's Plus Caulk |
| Tower Sealants | TS-00515, TS-00525, TS-00535, TS-00545 | Tower Sealants Tub & Tile Siliconized Acrylic Caulk |
| White Lightning | W21000010, W21001010, W21000005 | White Lightning Kitchen and Bath Latex Ultra Caulk |
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