Limestone & Sandstone Sealer

Bondall Limestone & Sandstone Sealer is clear siloxane sealer designed to seal, bind and repel moisture from natural and reconstituted limestone and sandstone surfaces.

Australian Madeicon_60_waterbasedicon_60_biodegradeable

Limestone & Sandstone Sealer

Available sizes: 10L
Limestone and Sandstone Sealer
Bondall Limestone and Sandstone Sealer is designed to seal, bind and repel moisture from natural and reconstituted limestone and sandstone.
Bondall Natural Finish Sealer
Bondall Natural Finish Sealer is ideal for sealing concrete, clay, natural stone, brickwork, and limestone pavers on patios and other areas.
Bondall Paving & Concrete Sealer
Bondall Paving & Concrete Sealer is a hard wearing acrylic clear finish for sealing clay or concrete pavers, concrete floors, unglazed tiles and slate.
Bondall Wetlook Sealer
Bondall Wetlook Sealer is a premium quality single pack, clear dressing for slate, natural stone, and other natural decorative materials and surfaces.

step1Preparation

Surface preparation is critical. Areas affected by efflorescence, grease, mould or bore stain should be treated with the appropriate Bondall cleaning product.

Ensure all surfaces to be sealed with Bondall Limestone & Sandstone Sealer are clean, dry and free from dust and other
contaminants. Any stains present will become more apparent once sealed.

While a surface that has been cleaned with a high pressure water jet or saturated with water may appear dry, we recommend it be allowed to dry for a minimum of 3 days before sealing as the substrate may still contain moisture.

step2Application

Stir the contents well before and during use. DO NOT SHAKE as shaking will produce air bubbles which may become trapped on the surface.

Apply by low pressure spray (preferred), brush or roller. Proper penetration of the first coat is very important. On horizontal surfaces, do not allow pooling as this will lead to an uneven finish.

Apply a second coat immediately after the first coat has been absorbed by the surface. This is termed as “wet-in-wet” application. The object is to saturate the surface to allow better penetration.

The number of applications depends on the permeability of the substrate. Generally only one “wet-in-wet” application is
enough but for very permeable limestone a further application immediately following the first two may be necessary. Under no circumstances should the surface be allowed to dry and become water repellent before the next application.

step3Drying

Bondall Limestone & Sandstone Sealer's water repellency will develop gradually after the surface is dry. Full curing may take 24 hours or up to 7 days. Avoid heavy traffic for at least 24 hours. Drying times are a guide only. Longer drying times may be required under cooler or humid conditions.

Features & Benefits

  • Penetrating sealer
  • Water based
  • Non-yellowing
  • Assists against efflorescence, staining, soiling and algal & fungal growth
  • Binds, strengthens Limestone & Sandstone surfaces

Ideal For

Limestone and sandstone of all types:
  • Vertical
  • Horizontal
  • Natural
  • Reconstituted

Areas Of Use

APTS_1
APTS_2
APTS_2

Technical

Gloss Level

Gloss level

UV Protection Level

UV Protection level
Apply: Brush, Roller, or low pressure spray (preferred).
Coverage: 1L = 2-5m2 (dependent on surface porosity)
Apply: Min 2 Coats
Drying Time: up to 24 hours.

Note:

Not intended for:
  • Dense surfaces
  • High density pavers
  • Non porous surfaces
  • Glazed or semi-glazed surfaces
As masonry materials vary significantly, a test MUST be carried out prior to application to determine the suitability of this product for the purpose.

Tips

  • Surfaces cleaned with acid based products need to be totally neutralised as any acid residue present may attack the sealer.
  • Always test if suffi cient product has been applied by carrying out a splash test.
  • Do not apply if temperature is below 10ºC or above 35°C or if rain is expected within 24 hours as this could lead to whitening of the coating.
  • Ensure adequate ventilation during use.

Clean - Up

Cleaning is as easy as 1-2-3!

Safety