1. Maximum thickness of the Tile adhesive shall be applied on the bonded waterproofing membrane shall be 10mm and for un-bonded waterproofing membrane shall be 6mm.
2. Relative humidity and dry/wet conditions:
RH : Situation
0 to 30 : Very dry
30 to 50 : Moderate
50 : Very good condition for any application.
50 to 100 : Wet / damp / moist
3. Prior to the application of coatings/adhesives on Gypsum substrates, surface shall be primed. The use of a primer ensures that the coating/adhesive will have sufficient open time, working time, and yields correct coverage. At the same time, coating/adhesive may require more drying time.
4. It is important to follow the guide lines provided in OSHA Silica Standard Housekeeping Guidelines while the application of coating, flooring, tiling, grouting, etc. works at site level.
5. Standard water-borne vinyl adhesives are based on the technology of wet set and pressure sensitive. Hence, while installation of Vinyl; Heavy roller shall not be used for rolling. Also, these type of adhesive are not good for area where expected to withstand excessive rolling and point loads, such as those imparted by hospital beds, in either their mobile (dynamic load) or stationary position (static load), and related hospital, office and institutional equipment.
6. How to test application is dry or not? Pour water onto the surface of the application in several areas and rub it with your finger. If the water remains clear, the application is dry. If the water turns cloudy or milky or changes it colour as of application, additional drying time is required.
7. Physical States of Water changes at:
a. Solid state (e.g. ice) occurs at temperature below freezing point 0 Deg C or 32 Deg F. (Ice)
b. Gaseous state (e.g. water vapour) occurs at temperatures 100 Deg C or 212 Deg F
c. Liquid state (e.g. sea water) occurs between freezing and boiling point temperatures (32 Deg F – 212 Deg F).
d. Dew point of temperature between 21 Deg C to 32 Deg C and relative humidity between 40% to 100%. So be careful with the temperature and humidity as both create the water at anytime, location may be internal or external, may it a floor, wall or ceiling.
8. Tile/stone Toughness Index : If the value of toughness index comes below 13 in impact test, then the stone is not tough. If the value comes in between 13 & 19 then stone is said to be moderately tough and if it exceeds 19 then stone is said to be highly tough.
Should you have any questions on this information, please comment below…
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