Question 1

What is Henkel Polybit Ceresit CM17 Cementitious Tile Adhesive used for?

Accepted Answer

CM17 is a cementitious tile adhesive designed for interior and exterior tiling. It fixes all ceramic tiles, including porcelain, mosaic, and quarry tiles, delivering a strong, flexible bond on varied surfaces.

Question 2

Which surfaces and substrates are compatible with CM17?

Accepted Answer

CM17 can be used on substrates such as concrete, brick, stone, plaster, and cement-based renders. It is suitable for walls and floors, including uneven surfaces, both indoors and outdoors.

Question 3

What are the key specifications of CM17 (pack size, workability, and performance)?

Accepted Answer

CM17 is supplied in 25 kg bags. It offers good workability, does not slump or sag, and provides strong adhesion with flexibility. It is designed to be resistant to water and frost, making it suitable for wet areas and exterior use.

Question 4

How do I mix CM17 for tiling?

Accepted Answer

Mix CM17 with clean water gradually to a smooth, lump-free plastic consistency. Use a slow-speed mixer to avoid introducing air, and let the mixture slake briefly before applying. Mix only as much as you can use within the adhesive’s workable time.

Question 5

How should CM17 be applied to tiles and substrates?

Accepted Answer

Apply CM17 with a suitable trowel to a clean substrate, creating an even bed. For larger tiles, back-butter the tile and press firmly to ensure full contact with the adhesive. Maintain uniform coverage and avoid gaps under tiles.

Question 6

What is the recommended waiting time before grouting after using CM17?

Accepted Answer

Grouting should be done after the adhesive has properly set, following standard tile installation practices. The exact timing depends on ambient conditions, substrate preparation, and tile type, but do not grout until the adhesive has achieved sufficient strength for tiling.

Question 7

Is CM17 suitable for wet areas like bathrooms and kitchens?

Accepted Answer

Yes. CM17 is designed to be water and frost resistant, making it appropriate for wet areas such as bathrooms and kitchens as well as exterior applications.

Question 8

What safety and handling considerations should I be aware of when using CM17?

Accepted Answer

Wear appropriate PPE (gloves, eye protection, and protective clothing). Use in well-ventilated areas. Avoid prolonged skin contact with uncured adhesive, and follow the product safety data sheet for storage and disposal guidance. Store in a dry place in its original packaging.

Question 9

What are common use cases for CM17?

Accepted Answer

CM17 is ideal for interior and exterior tiling projects, including walls and floors, on uneven substrates, with ceramic tiles (porcelain, mosaic, quarry). It is suitable for wet areas and exterior facades where a durable, flexible bond is required.

Question 10

How does CM17 compare to CM11 Plus and CM16 on Fepy.com?

Accepted Answer

Compared to CM11 Plus, CM17 offers higher flexibility and is geared toward larger or uneven surfaces, while CM11 Plus is typically used for standard interior tiling. CM16 is another high-performance cementitious adhesive with different substrate and tile coverage characteristics. For side-by-side options, you can review: CM11 Plus at https://fepy.com/product/ceresit-cm11-plus-adhesive-25kg and CM16 at https://fepy.com/product/ceresit-cm16-adhesive-25kg on Fepy.

Question 11

If I need alternatives on Fepy.com, what similar products can I consider?

Accepted Answer

Two close alternatives are CM11 Plus and CM16, both cementitious tile adhesives with strong bonding and durability. CM11 Plus: https://fepy.com/product/ceresit-cm11-plus-adhesive-25kg; CM16: https://fepy.com/product/ceresit-cm16-adhesive-25kg. These are often used for similar tiling applications and substrate ranges.

Question 12

What are practical use-case scenarios to help decide if CM17 is right for my project?

Accepted Answer

Use CM17 when tiling interior or exterior surfaces with ceramic tiles (including porcelain, mosaic, quarry) on uneven substrates or on areas requiring a flexible, water-resistant bond. It’s well-suited for walls and floors in bathrooms, kitchens, or damp areas, as well as exterior facades where durability and adhesion on irregular surfaces are important.

Question 13

What should I do after tiling with CM17 to ensure long-term results?

Accepted Answer

Allow the adhesive to cure fully as per standard tile installation practices before grouting. Keep the tiled area protected from heavy traffic and moisture until the adhesive has properly set. After grouting, follow normal sealant and cleaning guidelines for tiles and joints to maintain appearance and durability.

لاصق البلاط الأسمنتي الأبيض من هنكل (Henkel) بوليبيت سيريسيت (CM 17) وزن (25KG)

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