Marble, granite & terrazzo restoration across Ontario since 1972
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A matte silicone sealer that deepens the colour of honed and textured stone.
$34.00CAD
Used by our own restoration crews on clients' stone.
Used by our crewsBest for textured material
Pairs well with
Our technicians recommend these alongside 355E Color Enhancing Sealer.

From $32.00
A gentle, pH-neutral soap for regular cleaning of stone floors and honed counters.
Why this product
Soaks into the stone
Sinks into stone and grout to repel water and oil, giving you time to wipe spills before they stain.
Matched to your finish
Textured stone needs a different sealer from polished or honed stone. The wrong one can leave haze or patchy colour.
The last step
Sealing usually comes last, after cleaning, honing, or polishing.
In context
Made for the kinds of stone we restore every week across the GTA.

Deepens the colour of slate and honed stone and protects it, with a matte finish.

For patios, foyers, and textured limestone where polish was never the goal.
Full description
A sealer for textured, honed, and flamed stone that also deepens its natural colour. It soaks in, repels water and oil, and leaves a matte finish.
355E Color Enhancing Sealer soaks into the stone to repel water and oil, and brings out the colour of matte and textured surfaces, so slate, honed limestone, and flamed granite look deeper and more even. People want that wet look on patio stone, rustic floors, and textured feature walls, but not on a polished marble kitchen.
314P Premium Silicone Sealer protects without changing the look. Choose 355E when you want protection and richer colour together: on stone that was never meant to shine, or stone that weather and wear have left chalky and faded.
Don't use it on polished marble counters, glossy granite islands, or any surface meant to shine. On polished stone it can look hazy, smeared, or patchy, and that is hard to undo without professional help. If your stone reflects overhead lights like a mirror, use 314P instead.
It only works on stone that is clean, fully dry, and free of wax, acrylic, or old coatings. Sealing over dust, soap film, or moisture traps it and leaves blotchy colour. After heavy dirt or time outdoors, deep clean first (with MC 24 where it suits the surface), then let the stone dry a full 24 hours.
Because 355E changes how the stone looks, always test it first. Apply it to a hidden 15 cm patch, let it cure as the label says, and live with it for a day if you can. Slate and limestone can change more than people expect.

How to use
355E changes the colour as well as protecting the stone, so test it first, apply thin coats, and let it dry fully before anyone walks on it. Not sure if your stone is polished or textured? Request a stone assessment before you order.
Clean and dry
Remove all dirt and old coatings. The stone must be completely dry first.
Test the look
Try a small hidden area and let it cure. Make sure you like the colour before doing the rest.
Apply thin coats
Work in sections with a brush or roller and wipe off anything left on the surface. Several thin coats beat one heavy one; excess on top attracts dirt and turns sticky.
Clean with a stone-safe cleaner
Use MC 24 on floors afterwards. Never use acidic or wax-based cleaners.
Stone care system
We match cleaners, treatments, and sealers to your type of stone and its finish.
Clean
Clean with a pH-neutral stone cleaner suited to your surface.
Treat
Treat stains or etching with the right fix: a poultice, the refinishing kit, or professional refinishing.
Protect
Seal stone that absorbs liquid, and keep it clean with the products we recommend.
Choose right
| Aspect | Recommended | Avoid |
|---|---|---|
| Stone | Textured, honed, and flamed stone | Polished marble, glossy granite |
| Look | Deeper colour, matte finish | Surfaces meant to shine |
Proof
Our crews recommend 355E Color Enhancing Sealer and leave it with clients after restoring kitchens, bathrooms, and lobbies across the GTA.
Stone care from the team that has restored GTA stone since 1972.
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Why buy from The Marble Clinic
The products we recommend after restoring stone.
1972
Serving Ontario since
25,000+
Projects completed
4.9/5
HomeStars rating
FAQ
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