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Since 2002

Brush-On / Spray-Applied Crystalline Concrete Sealer
CrystalGuard™ 300 concrete penetrating waterproofing sealer providing durable waterproofing for hydropower facilities and preventing water leakage in concrete structures.

CrystalGuard™ 300

Crystalline Penetrating Waterproofing Sealer

Deep Protection. Integral Durability

Since 2002, we have specialized in concrete crack resistance, waterproofing, and anti-corrosion technologies.

PIONEER® CrystalGuard™ 300

Deep Penetrating Crystalline Waterproofing Sealer

CrystalGuard™ 300 Spray-Applied Crystalline Sealer

PIONEER® CrystalGuard™ 300 is a spray-applied crystalline waterproofing sealer designed for concrete surfaces. This product penetrates deeply into the concrete, forming a dense crystalline structure that provides long-lasting waterproofing protection. It is easy to apply using either manual or automatic spraying methods, making it suitable for large-scale applications. With its ability to repair cracks up to 0.2mm, it ensures a durable, waterproof barrier in various concrete structures.

Crystalline waterproofing products crystalguard 300 pails

Key Benefits of CrystalGuard™ 300 Spray Crystalline Sealer

  • Easy to Apply: Manual or automatic spray application for flexibility and ease of use.

  • Efficient Coverage: Coverage of 0.5kg per square meter, applied in two coats (0.3kg for the first and 0.2kg for the second).

  • Self-Healing: The product automatically repairs cracks up to 0.2mm, maintaining its effectiveness over time.

  • Deep Penetration: Penetrates up to 30mm into the concrete, forming an integral crystalline waterproof barrier.

  • Cost-Effective: Provides an economical solution with minimal material usage.

CrystalGuard™ Integral Crystalline Waterproofing Technology

CrystalGuard™ Integral Waterproofing is the result of PIONEER®’s 24 years of technological innovation, using crystalline waterproofing technology to achieve self-healing of concrete cracks and inherent waterproofing of concrete structures. This technology redefines the concept of building waterproofing and brings an intelligent dimension to concrete.

The related technologies of CrystalGuard™ have earned over 20 patents and received national recognition, including the Second Prize of the National Science and Technology Progress Award and the First Prize of the Ministry of Education Science and Technology Progress Award. CrystalGuard™ overcomes the limitations of traditional flexible waterproof materials, such as aging, blistering, difficulty in construction, and challenging maintenance. Its waterproofing lifespan matches the structure’s lifespan.

Multiple patents and national awards for PIONEER® concrete waterproofing and fiber reinforcement technologies, including China’s National Science and Technology Progress Award.

Technical Advantages of Spray-Applied Crystalline Sealer

  • High Penetration: The crystalline technology allows deep penetration, forming an internal waterproof barrier that resists water infiltration.

  • Low Material Usage: At just 0.5kg per square meter, it offers an economical solution without compromising performance.

  • Crack Healing: Automatically heals micro-cracks (up to 0.2mm), ensuring continuous protection.

  • Durability: The crystalline structure remains intact over time, providing long-lasting protection without frequent maintenance.

Worker spraying CrystalGuard™ 300 crystalline waterproofing on concrete slab for integral waterproofing and concrete protection

Spray and Seal
Effortless Waterproofing

Key Standards and Test Methods for Spray Crystalline Sealer

  • ACI 212.3R-10: Report on Chemical Admixtures for Concrete.

  • ASTM C39/C39M: Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens.

  • ASTM C494/C494M: Standard Specification for Chemical Admixtures for Concrete.

  • ICRI 320.3R: Guidelines for the Use of Penetrating Crystalline Waterproofing Systems.

Typical Applications for Spray Crystalline Sealer

  • Water Tanks: Prevents leakage, ensuring water containment and maintaining water quality.

  • Underground Structures: Ideal for underground waterproofing, including basements and foundations, protecting against water ingress.

  • Bridge Decks: Protects bridge decks from water infiltration, reducing the risk of corrosion and extending the service life of the bridge.

  • Dams: Ensures dams remain impervious to water seepage, preserving structural integrity and safety.

  • Tunnels: Provides critical protection for tunnel waterproofing, keeping water out and enhancing the tunnel’s durability.

  • Concrete Slabs: Improves the water resistance of large concrete slabs, increasing their longevity and durability.

PIONEER® CrystalGuard™ 300 Dosage & Mixing Instructions

  • Surface Preparation: Clean and slightly dampen the concrete surface before application.

  • Spray Application: Apply PIONEER® CrystalGuard™ 300 using manual or automatic spray equipment. Apply the first coat at 0.3kg per square meter and the second coat at 0.2kg per square meter.

  • Curing: Allow the surface to cure for 24-48 hours, depending on weather conditions.

  • Maintenance: Periodic inspection is recommended to ensure the continued effectiveness of the waterproofing layer.

Integral Waterproofing Admixture

PIONEER® engineers inspecting FRC construction at the construction site

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Why Choose Us?

Proven Expertise & Greater Savings

24 years of focus

on concrete protection solutions.

20+ patents & awards

In concrete durability technology

20+ countries served

with global product distribution.

1,000 projects proven

in diverse applications worldwide.

Why Choose PIONEER® Technologies

Tested, Proven, and Engineered for Concrete Crack Control and Durability

Partner with a trusted leader in concrete crack control, fiber reinforcement, and crystalline waterproofing solutions for modern infrastructure and high-performance concrete systems.

1. Independently Tested and Certified

Validated through independent laboratory testing and tested according to ASTM , PIONEER® technologies deliver reliable performance in fiber reinforced concrete and crystalline waterproofing applications.

2. Proven in Real Projects Worldwide

With applications in over 1,000 projects across 20+ countries, our systems have been used in major infrastructure such as the Hong Kong–Zhuhai–Macao Bridge, Bangladesh Subsea Tunnel, and metro systems, demonstrating consistent performance in demanding environments.

3. Integrated Reinforcement and Waterproofing Solutions

We provide advanced systems including macro synthetic fibers, micro fiber reinforcement, and crystalline waterproofing, supporting applications in industrial floors, precast concrete, ready-mix, and infrastructure projects.

4. Direct Manufacturer with Engineering Support

We offer dosage design, mix optimization, and on-site technical support, backed by over 24 years of experience, ensuring efficient implementation and consistent performance across large-scale construction projects.

Aerial view of PIONEER® production facility in Nanjing, showcasing the company's modern factory and large-scale concrete fiber manufacturing capabilities.

26,500m² production base

Synthetic fibers manufacturing production line for fiber reinforced concrete, producing concrete fibers and fiber mesh reinforcement to reduce cracks and improve durability.

Advanced fiber dispersibility

Concrete fibers production line manufacturing reinforcement fiber for concrete and improving fiber reinforced concrete performance.

Exceptional tensile strength

FAQ

  • CrystalGuard™ 300 is a spray-applied penetrating crystalline waterproofing sealer for concrete surfaces. It is the penetrating-sealer product within the CrystalGuard™ Surface-Applied range.

  • CrystalGuard™ 300 is positioned as a penetrating treatment rather than a cement-based crystalline coating. For a coating or slurry application, evaluate CrystalGuard™ 400.

  • Current public product information states that CrystalGuard™ 300 may be applied to both new and existing concrete when the surface meets the required preparation conditions. Confirm minimum concrete age and substrate requirements from the current Technical Data Sheet. (www.pioneerfibre.com)

  • Current public guidance indicates approximately 0.5 kg/m² total in two coats, with approximately 0.3 kg/m² for the first coat and 0.2 kg/m² for the second. Confirm the current rate and substrate-related adjustments before estimating material quantity. (www.pioneerfibre.com)

  • Apply CrystalGuard™ 300 to a properly prepared concrete surface using approved manual or automatic spray equipment. Follow the current product procedure for surface moisture, coat interval, coverage and curing.

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