SpecChem SpecShield EX
SpecChem SpecShield EX
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Contractor Overview
SpecShield EX is a concrete sealer or water repellent. Silane-Siloxane Exempt Solvent Penetrating Water Repellent SpecShield EX is a 100% reactive, exempt solvent silane-siloxane sealer. This clear, penetrating, breathable water repellent is designed for use on both horizontal and vertical, interior and exterior, above-grade concrete or masonry surfaces.
Best For
- Masonry
- Vertical
- Horizontal
Key Features
- VOC content 350 grams/liter, OTC, LADCO compliant
- Concrete surface protection
- Supports appearance and durability goals
Material & Application Notes
Silane-Siloxane Exempt Solvent Penetrating Water Repellent SpecShield EX is a 100% reactive, exempt solvent silane-siloxane sealer. This clear, penetrating, breathable water repellent is designed for use on both horizontal and vertical, interior and exterior, above-grade concrete or masonry surfaces. It penetrates the surface and bonds directly with the substrate, providing a surface highly resistant to moisture and salt attack.
Why Contractors Choose It
Contractors choose SpecShield EX when the slab or surface needs protection, appearance control, and a sealer matched to exposure conditions.

Application
Preparation:
- Ensure the surface is dry, well cured (minimum 14 days), and free from moisture, curing residue, dust, debris, oil, and other contaminants.
- Surfaces must be absorptive to allow penetration of SpecShield EX.
Application Method:
- Apply using a low pressure, non-atomizing sprayer (10 to 20 psi), broom, or squeegee.
- Remove any puddles or standing material immediately.
- Adjust application rate on very porous surfaces and follow a wet-on-wet method.
- Do not allow excess to dry on the surface.
Packaging
Available in 55 gallon drums and 5 gallon pails.
Shelf Life
Store in a clean, dry area between 45-85°F. Shelf life is two years in unopened containers.
