Polyurethane Sealants – Professional Waterproofing & Joint Protection

Video Show

🎥 Insert Demo Video Placeholder
（视频展示施工过程：金属桶包装开封、密封胶施工、防水效果对比）

Brand & Craftsmanship Storytelling

At SANSI Waterproof Materials, we believe that the real value of a sealant lies not only in its chemical formula but also in its visible performance and reliable origin. Every batch of our polyurethane sealants is crafted to ensure long-lasting waterproofing, structural flexibility, and global compliance.

高端客户更加看重可见的施工效果与真实的品质来源。本部分强调优质原料、先进工艺与可持续承诺。

Materials & Sourcing

We use only premium-grade polyurethane resins, environmentally safe additives, and ISO-certified raw materials. Each component is selected for its durability, adhesion strength, and resistance to water, UV, and chemicals.

采用高分子聚氨酯树脂、环保添加剂和通过 ISO 认证的原材料，确保耐久、粘结强度及抗水、抗紫外和抗化学性能。

Structure & Durability

Every sealant is engineered with high elasticity, strong bonding strength, and excellent crack resistance. The advanced formula adapts to expansion and contraction of building joints, guaranteeing long-term waterproofing without peeling or cracking.

通过高弹性、强粘结力及优异的抗裂性能，应对建筑伸缩，确保长期防水效果。

Ergonomics & Application

Polyurethane sealants are designed for easy application with standard caulking guns. Smooth extrusion, good leveling, and non-sag properties make them user-friendly for construction teams.

设计易于施工，适配常见胶枪，具备良好的挤出性、流平性和不垂流特性。

Sustainability

Sustainability is part of our production DNA. From low-VOC formulations to ISO14001-certified factories, and recyclable packaging drums, we integrate responsibility at every step.

环保配方（低 VOC）、绿色工厂认证及可回收包装桶，确保可持续发展。

Capacity & Use Scenarios

Capacity Fit Guide

• Construction joints (concrete, brick, stone, metal)

• Waterproofing of curtain walls and façades

• Expansion joints in highways, tunnels, and bridges

• Industrial flooring, pipelines, and tanks

Interior Structure Overview

• Single-component polyurethane sealant (ready to use)

• Two-component polyurethane sealant (for heavy-duty projects)

Real-Life Application Video

🎥 Short clip: application on cement joints, façade waterproofing, and industrial flooring.

Scenario Cards

Perfect for building façades, bathrooms, kitchens, basements, roads, and infrastructure projects.

Craftsmanship & Material Certifications

All products comply with ISO 9001, SGS, REACH, and RoHS standards. Certifications guarantee authenticity, sustainability, and high performance.

Product Details & Comparisons

Specifications Table

• Packaging: 300ml cartridge / 600ml sausage / 200L drum

• Color: White, Grey, Black (customizable)

• Density: 1.35 ± 0.05 g/cm³

• Skin Time: 30–60 min

• Curing Speed: 3–4 mm/day

• Shore A Hardness: 25–45

• Elongation at Break: ≥ 400%

• Service Temperature: -40℃ to +90℃

• Shelf Life: 12 months

Style Comparison

Compare single-component vs two-component polyurethane sealants to find the right fit for residential, commercial, or industrial needs.

Matching Accessories

Pair with primer agents, caulking guns, and surface cleaners for best sealing results.

About SANSI Waterproof Materials

We specialize in polyurethane sealants, silicone sealants, epoxy grouts, and waterproof coatings. With over 20 years of expertise, we provide OEM/ODM solutions for global clients, ensuring durability, compliance, and performance.

Client Case Studies

We have delivered OEM and engineering solutions for construction firms, infrastructure projects, and global distributors, meeting international waterproofing standards.

FAQ

Q1: Is polyurethane sealant suitable for outdoor use?
Yes. It has excellent UV and weather resistance.

Q2: Can it bond to cement, stone, and metal?
Yes. It provides strong adhesion to porous and non-porous substrates.

Q3: Is customization available?
Yes. Colors, packaging sizes, and formulations can be customized.

Q4: What is the shelf life?
12 months in original unopened packaging.

Q5: What are typical applications?
Building joints, façades, roads, bridges, basements, bathrooms, and kitchens.