Question 1

What's the cleaning procedure prior to using LastiSeal? I have pavers and usually just pressure wash a few days before

Accepted Answer

If the pavers are generally clean and in good shape, then pressure washing is not always necessary. As noted on the instructions:

SURFACE CONDITIONS

Substrate should be dry prior to sealer application. Brick, concrete and porous masonry may require SEVERAL days to dry after heavy rain or pressure washing. Avoid rain for 24 hours after sealer application. Ambient air and surface temperatures must be above 45º and below 100º F during the application and for 24 hours after. Avoid applying to hot surfaces in direct sunlight, or in strong winds and excessive humidity. New concrete should be allowed to cure for at least 28 days.

SURFACE PREP

Surfaces must be clean, bare and porous. Remove paints, sealers, curing compounds, adhesives, oil, grease, mold, efflorescence and other contaminants that might interfere with the penetration of the sealer. Hard-troweled concrete surfaces require chemical etching or mechanical abrasion to increase porosity. A sufficiently porous surface should readily absorb the sealer. Use PowerEtch Concrete Etcher & Cleaner to obtain a proper surface profile. If chemical cleaners or concrete etchers are used, be sure to throughly rinse and remove them prior to sealer application. Mask surfaces not intended to be sealed. Vacuum or blow off excessive dust and loose particles.

Cheers,
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Craig - Product Tech
RadonSeal

Question 2

Will it work for a brick patio that we are enclosing for an Arizona room or porch

Accepted Answer

LastiSeal will seal any porous masonry. Bricks, blocks, sandstone, limestone....if its porous, LastiSeal is an excellent choice.

Question 3

Can this product be used in cold climates?  I read that sealers on brick in cold climates can trap the water and cause the brick to flake.

Accepted Answer

I am using it in Wilmington, NC so can not give any feedback of using it in cold weather. It is doing exactly what I wanted it to do though

Question 4

Does concrete sealer work on rock walkways?

Accepted Answer

LastiSeal Brick & Concrete Sealer is a nano-chemical, PENETRATING sealer. It can be applied to POROUS surfaces/materials; poured concrete, concrete blocks, brick, mortar, pavers, limestone, sandstone, etc. It is not advised to use this product over rock surfaces. Rock is dense and simply will not absorb the product internally.

ASIN	B01AO9DRCY
Best Sellers Rank	#409,100 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,092 in Hardware Sealers
Brand	RadonSeal
Brand Name	RadonSeal
Color	Clear
Compatible Material	Concrete, Brick, Pavers, Stucco, Porous Stone
Customer Reviews	4.4 out of 5 stars 175 Reviews
Item Form	Liquid
Item Weight	23 Pounds
Manufacturer	Novion
Material	Polyurethane & Polyester Blend
Material Type	Polyurethane & Polyester Blend
Model	143
Number of Items	1
Part Number	143
Style	Penetrating Sealer
Style Name	Penetrating Sealer
Surface Recommendation	Floor & Wall
UPC	856255006072
Unit Count	320.0 Fluid Ounces
Water Resistance Level	Waterproof

LastiSeal Brick & Concrete Sealer – Deep-Penetrating Sealer that Strengthens Surfaces – Water-Resistant Protection for Brick, Concrete & Pavers – Interior & Exterior Use – Flat/Natural (2.5 Gallon)

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