Ultra Block

Pre-Sealer & Six Sided Dip Sealer

Ultra-Block™ Pre-Sealer and Six Sided Dip Sealer

Ultra-Block™ is an economical water based specialty sealer formulated for six sided, dip-sealing, underside & pre-grouting sealing. Helps resist staining caused by water soluble minerals (including picture framing effect) which are normally absorbed through the back of the stone during installation. It also helps resist ef orescence migration & adhesive blotch marks. Can also be used as a pre-grouting sealer. Allows moisture vapour transmission (MVT).

Key Features
  • Safe, Easy to Use, Breathable, AQS™ Technology Formula
  • Reduces Picture Framing, Mineral Staining & Efflorescence
  • Simplifies Grout Clean Up Process & Reduces Adhesive Blotching
  • Ideal for Dip Sealing, Non Yellowing, Non Coating
Important Note

 will reduce the porosity of the underside sealed surface. Please contact your adhesive supplier or manufacturer for specifcation of the appropriate adhesive suitable for installing low porosity/dense surfaces. Sealed underside surface and substrate should be thoroughly wet out with the adhesive (back butter using the at side of trowel) prior to applying adhesive with appropriate notch trowel to ensure proper coverage and adhesion. Follow adhesive manufacturer recommendation for the appropriate adhesive & ensure relevant Standards for stone & tile installation are followed.

Available In
4 Litre

4 Litre

Further Information

he Aqua-Seal STS™ range of accessories are designed to make sealing, cleaning and problem solving applications easier.

Maintenance Products

The Aqua-Seal STS™ range of biodegradable Cleaners is formulated to clean & maintain your surface without fear of damage to your tile, stone or sealer. Our range of cleaners is for domestic & commercial use. Safe and effective for your routine daily clean or your periodic heavy duty clean.


Stone Bench Top Cleaner

Grout Clean Pro

Stone, Tile & Grout Cleaner


Cleaner & Re-Sealer


Cleaner & Re-Sealer

Deep Clean Pro

2 Part Cleaner & Degreaser


Heavy Duty Cleaner


Everyday pH Neutral Cleaner
Other Sealer Options

The Aqua-Seal STS™ range of Sealers are formulated to provide either a Good, Better or Best type of performance based on the needs of the customer. The better the sealer then the better the protection, the longer the reaction time and the longer the life span of the sealer.

AquaShield GT

Premium Glass & Tile Sealer


Premium Aerosol Sealer


Six Sided , Dip & Pre-Sealer

Encaustic Seal Gold

Premium Encaustic Tile Sealer

Aqua-Seal Bronze

Natural Look Sealer (Good)


Sealer & Colour Enhancer

Aqua-Seal Silver

Natural Look Sealer (Better)
Problem Solver Options

Stone and tile areas exhibit many specific problems such as efflorescence, grout residue and mineral staining. The Aqua-Seal STS™ range of Problem Solvers is designed to help solve these issues as safely and effectively as possible. There’s simply no other range of problem solvers for stone, tile, concrete & grout as comprehensive as Aqua-Seal STS™.

Grout Release Pro

Pre-Grout Release Agent


Sealer & Coating Remover

Poultice Powder

Stain Remover Powder

Poultice Plus

Stain Remover Paste

OxiTreat HD

Heavy Duty Acid Cleaner


Powerful Nano Cream Cleaner

Haze Away

Grout Haze Cleaner & Inhibitor

Grip-It T

Anti-Slip Treatment


Efflorescence Cleaner & Inhibitor

Blast HD

Industrial Strength Problem Solver

Active Plus

Oxygenated Cleaner
Important Information

▶ Sealer will not prevent surface wear or etching from harsh or acidic chemicals.
▶ Sealer is NOT a waterproofing agent.

▶ Due to the nature of different surfaces, you should do several test areas in inconspicuous areas according to the label instructions to determine surface colour stability and desired results. The end user must determine the suitability of the product for their intended use.

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