Tasman Chemicals  

Procedure for Preparation, Sealing and Maintenance of Floors

Some floors are unsuitable for treatment. Consult your supplier and if a doubt exists try the product on a small area first. Because of the enormous variety of substrates, surfaces react differently to the application of a sealer. ALWAYS test a small, discreet area before proceeding with the entire job.

Surface to be sealed must be completely clean and dry - free from grease, oil, paint, acid, efflorescence, loose flakes and traces of grout.

Allow 7-14 days (depending on weather conditions) from the date of laying the floor to ensure mortar bed and grouting have dried and cured.  If the slate has been laid in sand/cement, allow 4-6 weeks for complete drying of bed prior to sealing.

Removal of cement and grouting from the tiles should be effected using LIFT OFF and a wire brush or steel wool.  Rinse the solution from the tiles using clean water until all residues of LIFT OFF are removed and the floor is thoroughly neutralised.

NOTE:  The majority of sand and cement should be removed during the laying process and the use of Spirits of Salts (hydrochloric acid) is NOT RECOMMENDED.

Sweep floor to remove any excess dirt or dust and then follow the preparation steps detailed below.

1.                              PREPARATION

The floor should be cleaned of all marks and soils using TILE KLEEN.

Dilute TILE KLEEN in HOT WATER at the following rates:

1:50 for Heavy Soils

1:100 for Light Soils

Apply the TILE KLEEN using a rotary scrubbing machine or manually with a heavy scrubbing brush.  All stains must be removed prior to application of the SLATE SEAL.  Collect TILE KLEEN solution using a clean mop and wringer bucket.  Rinse the floor twice with clean water.  Allow the floor to dry thoroughly prior to sealing.

2.                              RETENTION OF NATURAL COLOUR

In order to preserve the original colour of slate tiles there are a number of procedures which may be followed:

(a)     Using ALL-STONE SEALER (for gloss finish on slate)

                         Apply 3 thin, even coats of ALL-STONE SEALER using a paint brush or lambswool applicator allowing at least 4 hours drying time between each coat.  Do not allow ALL-STONE SEALER to collect in puddles and avoid heavy traffic for 48 hours after sealing.  DO NOT apply SLATE SEAL over the top of ALL-STONE SEALER.

(b)     Using ALL-STONE SEALER on porous terracotta (for gloss finish on Terracotta)

                         Apply 3 thin even coats of ALL-STONE SEALER using a paint brush allowing at least 4 hours drying time between each coat.  Do not allow ALL-STONE SEALER to collect in puddles and avoid heavy traffic for 48 hours after sealing.  DO NOT apply SLATE SEAL over the top of ALL-STONE SEALER.

                         ALL-STONE SEALER should not be applied if the temperature is below 8C.

 (c)     Using HERITAGE FINISH or TERRA SAND (for slate, terracotta and natural stone).  Apply 1 coat of PRE SEAL depending on porosity.  Allow to cure for at least 24 hours.

                         Apply 3-4 coats of HERITAGE FINISH or TERRA SAND using a paint brush allowing at least 4 hours between each coat.  Avoid heavy traffic for 24 hours after sealing.  On very porous surfaces TERRA SAND is the recommended product.  DO NOT apply SLATE SEAL, ALL-STONE SEALER or SLATE FINISH over the top of HERITAGE FINISH or TERRA SAND.

 3.                              APPLICATION OF SLATE SEAL (Gloss or Satin)

(a)     Surfaces previously sealed with slate sealers other than Tasman Slate Seal, or polished surfaces, must have all traces of old sealer and polish completely removed with suitable strippers prior to sealing with Tasman SLATE SEAL.

(b)     Do not use SLATE SEAL on hot surfaces - all surfaces must be cool.

(c)      Liberally apply 2 or 3 coats of SLATE SEAL (Gloss or Satin) using a clean brush or lambswool applicator.  Allow 8 hours drying time between coats.

(d)     Avoid heavy traffic for 24 hours after sealing.

(e)     To maintain seal in wet areas simply apply a further coat of SLATE SEAL (Gloss or Satin) to worn/dull areas as required.

(f)     To maintain seal in dry areas apply SLATE FINISH according to detailed instructions.

(g)           SLATE SEAL emits a solvent vapour during application and rooms should be ventilated to ensure vapour dissipates during and after application.  Ensure no smoking and naked flames during application of SLATE SEAL.

4.                              APPLICATION OF SLATE FINISH

(a)     After SLATE SEAL or ALL-STONE SEALER have been applied and dried thoroughly, apply a thin coat of SLATE FINISH using a clean mop.  Allow to dry (1 hour), then apply a second thin coat in the opposite direction on the first coat.

(b)     Allow SLATE FINISH to fully harden (overnight) before floor receives full traffic.  The SLATE FINISH will respond well to machine buffing if available.

(c)     Use of SLATE FINISH is not recommended on exterior floors or stairs.  It is formulated for interior use only in dry areas.

5.                                MAINTENANCE PROCEDURES

(a)     Sweep the floor daily to remove dust and light soils.

(b)     Damp mop the floor with a solution 1:100 TILE KLEEN prepared in warm water.

(c)     When floor begins to look dull, clean as described in (a) and (b) and then apply a thin even coat of SLATE FINISH to the floor as described previously.

(d)     Regularly re-apply SLATE SEAL or ALL-STONE SEALER to rejuvenate the floor. If resealing with SLATE SEAL GLOSS, all traces of SLATE FINISH should be removed using RIPPER STRIPPER.

6.                                SEALING PORCELAIN OR NATURAL STONE

(a)     In order to determine the compatibility of PORCELAIN SEALER with your floor, a test area of one or two tiles should be attempted before sealing the entire floor - allow 24 hours.  If the finish in this area meets with your requirements continue to seal the remaining tiles.

(b)    Surface to be sealed must be completely clean and dry - free from grease, oil, paint, acid, efflorescence and traces of grout.

(c)    Newly laid areas need approximately 7 days to allow mortar and grout to cure and dry prior to sealing.

(d)    Any stains and soiling on old sealer or the tiles must be removed prior to sealing by using a suitable detergent and a stripper.

(e)    Allow the tiles to dry thoroughly prior to sealing by leaving for at least 24 hours after cleaning and washing.

(f)     Do not seal hot surfaces - all surfaces must be cool.

(g)     PORCELAIN SEALER is applied neat. Using a clean brush apply a light, even, continuous coat. After 24 hours, when the floor is dry, remove the excess from the surface with a single disc professional polisher fitted with a white or beige disc, or a household polisher fitted with felt pads, or a dry cloth. Any excess due to over-application can be removed with a cloth dipped in SLATE SEAL SOLVENT; this allows the excess to re-spread and removed simultaneously, so the floor is ready for use at once.

(h)     Any spills should be removed immediately to minimise absorption.  Some drinks and foods are acidic and to avoid etching should be removed quickly.

(i)      We recommend the use of TILE KLEEN to maintain your floor.

7.                                SEALING CONCRETE & PAVING BRICKS

(a)     Ensure good ventilation to dispense solvent vapours.  Keep away from naked flames, etc. Do not seal hot surfaces - all surfaces must be cool.

(b)     Newly laid areas need approximately 4-6 weeks to allow mortar  to cure and dry prior to sealing (depending on weather conditions).

(c)      Surface to be treated must be thoroughly clean and dry - free of grease, oil, paint, acid, efflorescence, loose flakes.  Any stains, soil and cement present on the surface should be removed prior to sealing using LIFT OFF and TILE KLEEN as per instructions.

(d)    Prior to sealing allow cleaned area to dry for at least 24 hours (depending on weather conditions).

(e)    Apply PAVER & CONCRETE SEAL neat using a clean paint brush or lambswool applicator.  To avoid the collection of puddle work in small areas applying two generous coats of PAVER & CONCRETE SEAL, allowing four hours drying time between each coat.

(f)    Full curing will take up to 24 hours and traffic should be restricted as much as possible during this time.  Surfaces may be lightly walked upon after two hours.

(g)    Clean brushes in SLATE SEAL SOLVENT.