Bellinzoni Astra 24K

Instructions

Instruction for use

ASTRA 24K SOLID: The parts to be bonded or filled must be clean, completely dry and free of dust. Add the liquid catalyst to putty 2% by weight, mix thoroughly until a homogeneous mass is obtained and apply by trowel on horizontal or vertical flat surfaces. Once cured, the mastic can be sanded and polished after about three hours (20°C)

The temperature has very influence on hardening: it is not recommended the application below 15°C (see Tech Sheet of Hardeners for further info).

Suggestion for use and recommendations:

• The use of 3% higher catalyst reduces the adhesiveness of the product. Also, it reduces the workability time and can cause a colour change.
• Never catalyse a whole can of putty in a time to prevent the mass effect which accelerates the hardening of the product.
• The polyester resins can be used outside, however, due to numerous factors (moisture, temperature changes, frost and thaw cycles) may lose their mechanical and chemical characteristics.
• The use of catalyst lower than 2% and / or low temperatures (below 15°C) retards the curing of the product.
• The temperature is a very important variable in the use of thermosetting products such as polyester putty; it acts in a manner inversely proportional to hardening of the product. For more information check the technical specifications of the catalyst.
• In case it is desired to pigment the mastic, to add the dye to reach the desired hue and then add the catalyst.
• The use of dye in 2% higher dough affect the adhesiveness of the product.
• The product after being mixed with the catalyst, can be worked for a maximum period of between 3 and 15 minutes (20°C).
• The treated material can be handled after 20 minutes after grouting.
• Before use read the recommendations printed on the label and always carry out a preliminary test.

Application surfaces:

• Marble
• Granite
• Terrazzo
• Stones
• Cement