Powdered Waterproof Repellent Guudpoly WR390 for Cement base Waterproof Mortar and CTG Goodyear Chemtech

Waterproof Agent (Powder)

Guudpoly powdered waterproof agents provide long-lasting hydrophobic performance for cement and gypsum materials. It repels liquid water effectively while remaining vapor-permeable, preventing blistering and efflorescence. It hardly affects final strength and features excellent compatibility with various admixtures. It is easy to blend in dry-mix mortars. Widely used in waterproof mortars, tile grouts, waterproof membrane, exterior renders, water-resistant gypsum plasters, and indoor finishing products for damp areas.

Category:

Waterproof Agent (Powder) Waterproof Agent

Waterproof Agent (Powder)

🌱 Core Advantages

Superior & lasting hydrophobicity:

Forms a low-surface-energy barrier on cement/gypsum pores, creating a lotus effect. It drastically reduces capillary water absorption, delivers long water repellency, and resists efflorescence, mold, and freeze-thaw damage.

Breathable & strength-neutral:

Blocks liquid water while allowing water vapor to escape “breathable”, avoiding blistering or trapped moisture. At low dosages (0.1%–0.5% PBW), it does not impair compressive strength and may even improve durability and abrasion resistance.

Easy to use & compatible:

Free-flowing powder is easy to disperses uniformly in dry mix mortars. Compatible with all cementitious/gypsum systems.

Eco-friendly:

Typically VOC-free, non-toxic, and suitable for indoor areas.

🧱 Key Applications

Cement mortar: Waterproof renders, tile grouts, bathroom/kitchen/balcony seams, exterior walls, decorative plasters, and basement screeds.

Dry-mix systems: Cement Insulation boards (foam), fiber-reinforced composites.

Gypsum products: Water-resistant gypsum boards, plasters, stucco, joint compounds, and art molds.

Available Grade

Grade	Chemical Base	Type	Function	Speciality	Application	Technical Data Sheet
Guudpoly WR381	Silane	Powder	Hydrophobicity	Cement	Waterproof Skim coats / Wallputty, Tile grouts, Waterpoofing membranes, Renders cement- limebased, Concrete repair	Download TDS
Guudpoly WR390	Silane	Powder	Hydrophobicity	Cement, east to be wet by water	Tile grouts, Waterpoofing membranes, Renders cement- limebased, Concrete repair	Download TDS
Guudpoly WR391	Silane	Powder	Hydrophobicity	Cement, east to be wet by water	Tile grouts, Waterpoofing membranes, Renders cement- limebased, Concrete repair	Download TDS
Guudpoly WR650	Silane	Powder	Hydrophobicity	Cement, east to be wet by water	Skim coats / Wallputty, Tile grouts, Waterpoofing membranes, Renders cement- limebased, Concrete repair	Download TDS
Guudpoly WR370	Silane	Powder	Hydrophobicity	Gypsum	Gypsum joint filler, gypsum plaster	Download TDS

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What We Can Supply

Strict QC System Ensure Stable Performance Of Chemical Additives

Goodyear Chemtech operates a comprehensive ISO 9001:2015 quality management system that covers the entire production workflow. We implement strict quality control from raw materials, semifinished product, finished product. Automated production line reduce human error. Each product is associated with production time & batch records, and samples are retained to achieve 100% traceability.

Every batch undergoes rigorous testing for key specifications including ash content, adhesion strength, water retention, to meet the requirements for applications such as skimcoat, wall putty, tile adhesives, self-leveling compounds, and gypsum plasters etc. Our full-chain quality control mechanism consistently delivers stable batch-to-batch quality for construction material additives.

Supply High Value-Added Chemical Additives.

Goodyear Chemtech focuses on the research and development of special functional products. Through the continuous launch of innovative new products, we have built strong expertise in supplying high value-added chemical additives to global partners. Our chemical additives help end-users reduce production costs and develop cost-effective finished products, while consistently maintaining high-level product performance. We continue to optimize our product portfolio and technical services to meet the increasingly complex market demands from various industries.

Professional Packaging and In-Time Delivery

Goodyear Chemtech adheres to stringent standards for packaging management, which has allowed us to accumulate extensive experience in meeting the diverse requirements of global clients. We are capable of providing customized packaging and palletizing solutions tailored to different shipping and logistics needs. Backed by our high production capacity, we can smoothly execute planned production schedules and quickly adjust production arrangements to accommodate special circumstances. This capability guarantees on-time delivery of goods to our customers and effectively reduces risks caused by unexpected changes in orders or market conditions.