Puraseal
URETHANE COATINGS PURASEAL is fast drying water borne sealer developed to seal your timber and parquetry floors and thereby ensure that the subsequent coat of PURATHANE remains on the surface to maximise the wear layer. PURASEAL retains the natural colour of timber and has a reduced sheen finish to assist in preventing ‘misses’ in the next coat.
Because water is used as the alternative carrier to solvent, URETHANE COATINGS PURASEAL emits low VOC’S (volatile organic compounds) and is therefore user and environmentally friendly but retains all the benefits, including the reduced risk of edge bonding, of solvent based sealer.
Physical Description
Appearance: Opaque liquid.
Colour: Milky white.
PH: <7
Specific Gravity @ 25ºC: >1.
FLOOR PREPARATION:
General:
- Check that timber is adequately seasoned as if not, any subsequent cracking warping and shrinkage may compromise adhesion.
- Ensure the surface is dry and thoroughly clean, removing all dirt, mildew, wax, grease, resin oils, tannins and dust.
- Nail holes and surface defects should be filled with water based putty.
New Floors:
Follow steps 1 to 3 above, sand the floor and fine sand, finishing with 120 grit screen back or pad and vacuum thoroughly.
Old Floors:
Follow steps 2 to 3 above and clean with hot water and detergent. Roughen surface completely with 100 grit sandpaper and fine sand, finishing with 120 grit screen back or pad and vacuum thoroughly.
APPLICATION:
URETHANE COATINGS recommend a 3 coat system for most situations; 1st coat PURASEAL, followed by 2nd and 3rd coats of PURATHANE or PURATHANE TWO PACK. A 2 coat system will achieve a high performance finish on hardwood when applied at the rate of 8m² per Litre.
Application Orientation:
UV Stable, ideal for internal use, verandas, and covered patios.
Application Method: 3 Coat System
1st Coat. Decant PURASEAL directly from the container. Cut in edges with a paint edger or brush, taking care not to proceed excessively ahead of the main coating (particularly in hot and/or dry conditions). Apply PURASEAL at the rate of 10m² per Litre with a 10mm nap waterbased type roller cover or a waterbased applicator, disperse into a uniform finish taking care not to ‘overwork the coating’ allowing it to self level, and wherever possible, finish parallel with the grain. Allow 1.5 to 2 hours to dry (@ 25ºC and 50% R.H.) and prepare to recoat. Do not return unused material to the container.
It is not necessary to fine sand or buff PURASEAL unless surface imperfections or raised grain exist – if so allow 3 hours to dry and then buff with 150 grit screen back (or finer), taking extreme care not to cut through the PURASEAL as this will allow the next coat to ‘wet’ the timber which may dry a slightly different colour.
2nd Coat. Decant PURATHANE or PURATHANE TWO PACK directly from the container. Cut in edges with a paint edger or brush, taking care not to proceed excessively ahead of the main coating (particularly in hot and/or dry conditions). Apply PURATHANE or PURATHANE TWO PACK at the rate of 10m² per Litre with a 10mm nap waterbased type roller cover or a waterbased applicator, disperse into a uniform finish taking care not to ‘overwork the coating’ allowing it to self level, and finish wherever possible parallel with the grain. Allow 2 hours 30 minutes to dry (@ 25ºC and 50% R.H.) and buff with 150 grit screen back, vacuum thoroughly and prepare to recoat. Do not return unused material to the container.
3rd Coat. Repeat directions as detailed under 2nd Coat, finishing parallel with the grain. Allow 8 hours to dry (@ 25ºC and 50% R.H.) before providing access for light foot traffic.
Application Conditions:
Do not apply PURATHANE when ambient/surface temperature is below 10ºC or above 30ºC.
Do not apply PURATHANE if relative humidity is in excess of 85%.
Do not apply PURATHANE if the moisture content of timber is in excess of 14%.
USE and MAINTENANCE of a 3 COAT SYSTEM
PURATHANE and PURATHANE TWO PACK require 2-3 days (@ 25ºC and 50% R.H.) to cure before regular use, and 5 days before using cleaning formulations. Avoid heavy traffic during this period. After the curing period sweep regularly with a soft bristle broom, and if preferred rugs/mats/carpet squares can be placed on the floor. To clean your floor, mix up to one cup Methylated Spirit into a bucket of hot water, and mop the floor regularly rinsing the mop. Use protective pads under legs of furniture. Dirt and grit are abrasive when on the soles of shoes, and can damage any coating. Accordingly mats placed at entrances can assist in removal of grit, reducing abrasion and protecting the coating.
DRYING TIME:
Touch dry: 45 minutes. Through Dry: 2 hours. Recoat: 90 to 120 minutes (If Sanding is required allow 3 hours to dry.). All drying times are @ 25ºC and 50% relative humidity. Reduced temperature and/or increased humidity can delay drying time.
COVERAGE:
10m² per Litre.
THINNING:
URETHANE COATINGS PURASEAL does not require thinning. In hot and/or dry conditions and very large areas where it is difficult to maintain a wet edge, add 50ml of URETHANE COATINGS PURAMATE Wet Edge Extender per Litre of PURASEAL and refer to URETHANE COATINGS PURAMATE directions.
CLEAN UP:
Thoroughly wash brush, roller, applicator and equipment with water. If PURASEAL is allowed to ‘become tacky’ on equipment, first rinse off excess with water, then wash off any build up of PURATHANE with URETHANE COATINGS CLEANING SOLVENT or Methylated Spirit, then rinse with water. Dry all equipment before reusing.
PACKAGING:
URETHANE COATINGS PURASEAL is available in 5 and 10 Litre plastic bottles.
SHELF LIFE:
URETHANE COATINGS PURASEAL is best if used within 12 months from manufacture (refer to batch number on label), when stored in unopened containers under normal conditions of temperature (between 5ºC and 30ºC – DO NOT FREEZE) and humidity. Keep containers closed when not in use.
RESPONSIBLE CARE:
URETHANE COATINGS are proud of a conservative tradition of responsible care, and therefore regardless that the VOC levels of PURASEAL are low, it is inappropriate to advise PURASEAL (and all other water borne coatings) is non toxic. Accordingly URETHANE COATINGS recommend that personal protective equipment is used when applying this product.
SAFETY DIRECTIONS:
For detailed Health and Safety information refer to the PURASEAL MSDS as it is an integral part of using this product.
PURASEAL is classified as Non-Hazardous however URETHANE COATINGS recommend usage of this material must be in well ventilated conditions to minimise inhalation of vapours. If applying in confined conditions wear respirator with filters that conform to AS 1716. Prevent skin contact by wearing appropriate protective clothing. May irritate skin and eyes. Keep containers firmly closed when not in use. In case of spillage absorb into dry sand or dirt then remove from work area and complete disposal in a responsible manner.
FIRST AID:
If affected by inhalation of vapour, remove to fresh air. If breathing difficulty persists or occurs later consult a doctor and have MDSD ready. If swallowed, give water or milk to drink and Do Not induce vomiting. Contact a Doctor or Poisons Information Centre Australia 131126. In case of eye contact, ensuring eyelids are held open, flush immediately with water for fifteen minutes. In case of skin contact, remove contaminated clothing and wash skin with soap and water.
PRODUCT IDENTIFICATION
UN No.: Not Regulated D.G. Class: Not Applicable CAS No.: PROPRIETARY
HAZCHEM: Not Applicable PACK. GRP.: Not Applicable
Correct Shipping Name: Nil as Non-Dangerous Goods
Manufacturers MANCODE: URECOAT
Notice to Reader:
URETHANE COATINGS make no representation as to the completeness and accuracy of the information contained in this Technical Data Sheet. It is the user’s obligation to evaluate and use this data, and to comply with all relevant Federal, State and Local Government laws and regulations. URETHANE COATINGS shall not be responsible for loss, damage or injury resulting from reliance upon or failure to adhere to any recommendations contained herein, from abnormal use of the material, or from any hazard inherent in the nature of the material.