PENTENS T-308 is a reactive crystalline type waterproofing material which is formulated by proprietary blends of chemicals (mainly organic and inorganic salts), quartz, sand and cement. PENTENS T-308 is an environmentally friendly and low VOC material. It is an integral waterproofing system that added to batches of concrete during mixing process. The active waterproofing chemicals which react with moisture and free lime in the concrete or cement-based materials, it causes a

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