Sealers
Natural Shield
Breathable protection that becomes part of the surface
Natural Shield is a penetrating waterproofing sealer for porous surfaces that need long-lasting breathable protection, water resistance, UV resistance, and lower maintenance.
Protection that works below the surface.
Natural Shield works into porous materials, creating water-resistant protection while still allowing the surface underneath to breathe.
It delivers the durability expected from a solvent-based system with straightforward water-based application and clean-up, making it a strong choice for exterior, commercial, and water-exposed surfaces.
See Natural Shield in action.
Features & Benefits
Industrial strength with a natural finish.
Durability
Penetrates into the pores and stabilizes the substrate for long-lasting durability and reduced maintenance.
UV and alkali resistance
Provides extra protection across multiple surfaces and helps resist alkaline exposure and freeze-thaw damage.
Commercial & industrial use
Strong chemical resistance and industrial performance support commercial and industrial surfaces.
Waterproofing sealer
Low water permeability makes it useful in wet areas and on damp surfaces when properly specified.
Longer surface life
Helps protect mortar, tiles, stucco, brick, concrete, and natural stone from premature wear.
Application Instructions
Apply wet-on-wet and do not puddle.
Airless sprayer
Tip size 15 at 400 PSI.
Pump sprayer
3 coats minimum.
Roller
3 coats minimum.
Removal of debris
Sweep loose debris from the surface so there is no contamination in the sealer. This supports a clean, flat finish and proper penetration.
Sealer application
Apply with a 1/4 inch nap roller, HVLP sprayer, pump sprayer, or airless sprayer. Keep coats wet-on-wet as required and do not allow puddling, which can create haze.
Specifications
Coverage, product details, and laboratory results.
| Surface | Coverage |
|---|---|
| Polished concrete | 150-250 sq ft / gallon, 3 coats |
| Stamped concrete | 300-350 sq ft / gallon, 3 coats |
| Below grade | 150-200 sq ft / gallon, 3 coats |
| Artificial stone | 200-250 sq ft / gallon, 3 coats |
| Detail | Value |
|---|---|
| Color | Milky white |
| Chemical type | Silane and siloxane |
| Clean up | SEMCO Stone Soap with water |
| Shelf life | 3 years in controlled environment |
| Packaging | 1 gal pail, 5 gal pail, 55 gal drum |
| Exposure | Result |
|---|---|
| Used automobile oil | Good |
| Transmission fluid | Good |
| Water | Excellent |
| Alkali resistance | Excellent |
| Hydrochloric acid 10% | Good |
Documentation
Current product guidance for Canadian projects.
Project Support
Ready to discuss your project?
Send SEMCO Canada a few photos, the project location, what the surface is, and where it meets water or weather. We will tell you whether Natural Shield is the right choice.