crack resistance

Repair Mortar Cracking? HPMC + RDP Fixes It

By |2026-09-20T06:06:11+00:00September 20th, 2026|Industry knowledge|

Fine surface cracks after large-area repair mortar application are one of the most common quality issues. The cracks may be shallow, but they break surface integrity. Water seeps in along the cracks, accelerating aging and peeling. Many blame inadequate curing. Curing matters, but the root of cracking often lies in the mortar's own water retention

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RDP Tg: The Key to Cement Mortar Flexibility

By |2026-06-17T06:07:02+00:00June 17th, 2026|Industry knowledge|

rittleness and cracking have long been major concerns in cement‑based mortars. Adding redispersible polymer powder (RDP) greatly improves flexibility, yet the actual performance can vary widely. The root cause is often the glass transition temperature (Tg) of the RDP. Tg is not just a technical number. It directly determines whether the polymer film stays soft

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