About Sandstone
Sandstone is a sedimentary rock formed from debris deposited of silica granules by wind or water and consolidated with amorphous silica or calcium carbonate cementing matrix, often in conjunction with aluminum or iron oxide, which contributes yellow, orange or brown colouration.
Sealing Sandstone
Sandstone is very porous and one of the softest types of stone. Water and oil absorb into sandstone within seconds and, over a longer period, water and especially water with salt can do severe damage to the surface. All sandstone must be sealed to help keep it intact, free of salt efflorescence and looking good.
To maintain the look, breathe-ability and slip resistance of the sandstone, it is important to use a high quality, invisible impregnating sealer. Topical sealers will trap moisture in the stone which can damage it in time.
Dry-Treat impregnating sealers are safe and suitable to seal sandstone surfaces of all types - from wall cladding to floors, outdoors and in, residential and high traffic commercial.
Which Dry-Treat Sealers are Best for my Sandstone?
STAIN-PROOF Original™
Permanent, invisible, fully breathable impregnating sealer for water and salt, PLUS premium oil stain protection. 15 year performance warranty when sealing is performed by an Accredited Applicator. Click here for more details.
DRY-TREAT 40SK™
Permanent, invisible, fully breathable impregnating sealer for water and salt protection, plus surface consolidation. A MUST for sandstone in a salt water environment - such as around a salt water swimming pool. Click here for more details.
ENHANCE-PLUS™
For colour enrichment PLUS water based stain protection. 5 year performance warranty when sealing is performed by an Accredited Applicator. Click here for more details.
Plus:
STAIN-PROOF™ (1 coat) for additional oil protection at least 24 hours after ENHANCE-PLUS™.
Pre-sealing Preparation
1) Any surface to be sealed should be clean and looking just as you want it before it is sealed - it may be impossible to remove stains after sealing.
2) Check with the store your sandstone came from that the surface has no temporary coating (such as wax) - and ensure any such coating is removed before sealing.
3) Ensure the material is thoroughly dry before applying any Dry-Treat sealer.
Dry-Treat X-DUTY Cleaner™ is a highly effective, heavy duty cleaner which is safe to use on most types of porous surface. X-DUTY Cleaner™ is also an effective wax remover. Click here for more details.
Bleach diluted with water (1 part bleach to one part water) may also be used for stubborn stains. Apply the diluted bleach to the stained area, let it sit for 1-2 minutes, agitate with brush or cloth and then rinse well with clean water.
PLEASE NOTE:
1) Always test any cleaning chemical or sealer on a small, inconspicuous area of the surface 24 hours before doing the project, to check that it will produce the desired result. This is especially important with ENHANCE-PLUS™ to ensure the colour enhancement is what you want.
2) Always ensure the surface is completely dry before proceeding with sealing.
