Name: Cellulose Ether Blend CEB-30
Brand: Coatingsink
SKU: cellulose-ether-blend-ceb30
Availability: InStock

Question 1

Why use an HPMC/HEC blend instead of a single cellulose ether in tile adhesive formulations?

Accepted Answer

Blending HPMC and HEC allows independent tuning of water retention and open time. HPMC provides the thermal gelation that resists slump at elevated substrate temperatures, while HEC moderates early stiffening to extend workability. CEB-30 is optimized so formulators can achieve EN 12004 C2 performance without further adjustment.

Question 2

What dosage of CEB-30 is typical in a C2 TE tile adhesive?

Accepted Answer

Standard loading is 0.3–0.5% by dry weight of cementitious blend. At 0.4%, CEB-30 typically delivers open time of 20–30 minutes and anti-slump ≥0.5 mm on vertical surfaces per EN 1308. Increase dosage toward 0.5% in hot or windy application conditions.

Question 3

Is CEB-30 compatible with redispersible polymer powders (RDP) in flexible adhesive systems?

Accepted Answer

Yes. CEB-30 is fully compatible with EVA- and VAE-based RDPs at typical loadings of 2–5%. The blend does not adversely affect RDP film formation, and combined use generally improves flexural strength and adhesion to difficult substrates such as glazed tiles and fiber-cement boards.

Appearance	White to slightly yellowish powder
Moisture Content	≤6%
Viscosity (2%, 20°C)	25,000–35,000 mPa·s
Anti-Slump Performance	≥20 mm (tile adhesive board test)
Water Retention (DIN 18555-6)	≥98%

Cellulose Ether Blend CEB-30

Specifications

FAQ

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