Frequently Asked Questions

Browse the categories below and find the answers to the main questions about our products and about Hard Group as well.

Top FAQs (the general FAQs for any topic)

Which products are FM Approved certified? 
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What is the performance of MS 425 Facade Sealant? 
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What is the advantage of buying a FM Approved product? 
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What is FM APPROVED? 
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The screw is burning the tip. What should I do? 
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It is possible to glue ceramic or stone directly onto the Flexpren waterproofing? 
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Infinity grout left! Can I storage and use the product another day? 
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How to store Hard waterproofing? 
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How to calculate the amount of screws for a roof? 
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Does Flexpren waterproofing need a reinforcement screen? 
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Can Infinity grout be cleaned with bleach? 
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Can I apply Infinity grout on rough and/or non-skid surfaces? 
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Can Flexpren waterproofing material be used outdoors? 
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Can Flexpren waterproofing material be applied in water tanks? 
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Can Flexpren waterproofing be used in fountains or ponds? 
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