Name: Thompson's Waterseal Clear Multi-Surface Waterproofer - 1 gal
Brand: THOMPSONS
SKU: 032053241116
Price: 30.0 USD
Availability: InStock

Thompson's Waterseal Clear Multi-Surface Waterproofer - 1 gal

$30.00

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In stock: 2 available

Product Details

UPC: 032053241116

Brand: THOMPSONS

Proven to waterproof concrete, brick, exterior wood and other exterior surfaces. Use as a concrete waterproofer, brick sealer and wood sealer.

Features

Helps Prevent Water Damage
Helps Maintain Natural Color-Dries Clear
Use as a wood sealer, brick sealer, or for concrete waterproofing

Quick comparison table — Thompson’s WaterSeal Clear Multi‑Surface Waterproofer vs DRYLOK 831983 Gray Extreme Latex Concrete & Masonry Waterproofer

Attribute	Thompson’s WaterSeal Clear Multi‑Surface	DRYLOK 831983 Gray Extreme Latex
Product type	Clear, penetrating waterproofer (silane/siloxane or acrylic clear formula depending on SKU)	Opaque latex masonry coating (cementitious/latex waterproofing paint)
Primary use	Repels water on porous surfaces while keeping original look (wood, brick, concrete, pavers, stone)	Blocks water penetration and resists hydrostatic pressure on concrete/masonry
Finish / appearance	Clear (matte to slight sheen); preserves surface texture and color	Solid gray finish (painted look); hides surface color/imperfections
Waterproofing mechanism	Penetrates pores and chemically repels water (beading)	Forms a film/barrier on surface to stop water entry
Best substrates	Wood decks, fences, concrete pavers, natural stone, brick (where you want to keep appearance)	Basement walls, concrete block, poured concrete, masonry where an opaque protective coating is acceptable
Coverage (typical)	Higher coverage per coat on smooth surfaces; depends on porosity (manufacturer specs vary)	~75–100 sq ft per gallon (varies by surface porosity and texture)
Application	Brush, roller, pump sprayer; usually 1–2 coats; surface must be clean & dry	Brush, roller, or sprayer; usually 1–2 coats; may require patching/priming for very damaged surfaces
Dry time / recoat	Dries to touch quickly; recoat times vary by product (check label)	Dries to touch in 1–2 hours; recoat per label (often 2–4 hours depending on temp/humidity)
Durability	Protects against water penetration; does not provide a thick protective film; may need reapplication every 1–3 years depending on exposure	Durable film that resists water pressure; designed for long‑term masonry protection; may last several years before recoating
Breathability / vapor transmission	Penetrating sealers generally allow vapor transmission (less trapping of moisture)	DRYLOK is formulated to allow some vapor transmission but is a film former — can trap moisture if applied over damp or unprepared surfaces
Paintability / aesthetics	Keeps original look; not paintable (it’s clear)	Opaque finish; can be topcoated with masonry paint if desired
Temperature / moisture limits for application	Follow label; avoid very cold or wet conditions	Apply within recommended temp/humidity range; do not apply to frozen or saturated masonry
VOC / odor / safety	Some clear sealers are low‑VOC water‑based; solvent versions have stronger odor and higher VOCs — check SKU	Latex formula; moderate odor; generally lower VOC than solvent coatings but check label for exact VOC
Typical price positioning	Mid-range for clear sealers (price varies by size and formulation)	Mid-range for masonry waterproofing paints; price varies by size and retailer
When to choose	You want to preserve the natural look of wood/stone/brick and repel surface water (decks, pavers, stone walkways).	You need a solid, visible barrier on concrete or block (basement walls, foundation walls, exterior masonry) to stop leaks or resist hydrostatic pressure.

How to choose — practical guidance for the jobsite

Pick Thompson’s WaterSeal Clear if:

You’re sealing wood decks, fences, natural stone, pavers, or brick and want to keep the original appearance (no paint look).
The goal is water repellency (beading) and easier cleaning, not creating a painted barrier.
You need a product that penetrates and sheds water while allowing the substrate to look natural.

Pick DRYLOK Gray Extreme if:

You’re treating basement walls, concrete block, poured concrete, or masonry that’s leaking or subject to hydrostatic pressure.
You want a film‑forming barrier that actively resists water penetration and can be applied to stop seepage.
Appearance as a painted gray surface is acceptable or desired.

Application tips (both products)

Prep is everything. Clean surface of dirt, efflorescence, mildew, loose paint, and repair cracks/voids before applying.
Dry substrate for penetrating sealers. For clear penetrating sealers, apply to a dry surface for best penetration and performance.
Follow manufacturer instructions for temperature, humidity, number of coats, and recommended tools.
Test a small area first to confirm appearance (especially with clear sealers on stone/brick) and adhesion.
Safety: Use gloves, eye protection, and proper ventilation. Check VOC and disposal instructions on the label.

Quick job examples

Driveway pavers / patio stone: Thompson’s clear sealer to repel water and preserve look.
Basement interior wall with seepage: DRYLOK Gray Extreme to block water and create a protective barrier.
Exterior brick where you want original color: Thompson’s clear sealer.
Concrete foundation with active leaks: DRYLOK (after proper patching and prep).

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