The Reactive Thermoplastic Spacer Sealant With Superior Shear is a cutting-edge spacer system designed to combine the flexibility of thermoplastics with the long-term strength of reactive chemistry.
The Reactive Thermoplastic Spacer Sealant With Superior Shear is a cutting-edge spacer system designed to combine the flexibility of thermoplastics with the long-term strength of reactive chemistry. Specially developed for insulating glass units (IGUs), this sealant functions as both the spacer and the primary seal, offering unmatched shear strength, gas retention, and moisture protection.
Unlike conventional two-part systems or rigid spacers, this reactive thermoplastic formulation chemically bonds to glass and retains superior mechanical strength over time. It delivers a continuous, moisture-tight barrier with high resistance to shear forces, UV exposure, and aging. Ideal for automated IGU production lines, this sealant ensures high-speed application and dimensional stability with zero cure time required post-application.
Product Feature And Application
Henan Chengxin collected a large number of external adhesive products and tested the tensile bonding of CX-TPSS-R with external adhesive and glass. After testing, CX-TPSS-R can produce good chemical bonding with most external adhesives and glass on the market; Henan Chengxin carried out high temperature (90°C) and low temperature (-60°C) tensile bonding performance tests on CX-TPSS-R insulating glass. After testing, CX-TPSS-R insulating glass still maintains its excellent performance in harsh environments; The company has extensively tested the thermoplasticity and initial bonding performance of CX-TPSS-R to verify the initial bonding performance of CX-TPSS-R and glass and the droop of the molded spacer. After testing, when the width of the CX-TPSS-R adhesive strip is 22mm, the droop is still less than 1mm
Mainly used in the production of high energy-saving insulating glass.
Product performance
1. Appearance: fine and smooth, no cracking, powdering, and loss of viscosity:
2. Odor: meets environmental protection requirements and has no odor. 3. Strong aging resistance; 4. Rigid support and certain resilience.
5. Extrusion temperature: 110-140℃.
6. Shear strength: ≥0.40MPa.
7. Water vapor permeability: <0.20g/(m°.d)
8. Moisture adsorption rate: ≥0.35%.
Product Details
Deliver,Shipping And Serving
1. Online testing
Online testing will be carried out before the finished product is packaged, and the finished product will be packaged only after it meets the relevant requirements.
2. Quality control supervision.
Quality control will be carried out again before the finished product packaging is put into storage and enters the market.
3. Application testing
Carry out full product testing, from the user's perspective, restore the product application scenario, and test its application.
4. Technical service
Application technical service provides high-quality technical services. After the product enters the market, after-sales technical service will continue to track the product usage and provide high-quality after-sales service.
FAQ (Frequently Asked Questions)
Q1: What does “reactive thermoplastic” mean in this product?
A1: It refers to a hot-melt sealant that reacts chemically with the substrate (typically glass), enhancing bonding strength, while still behaving like a thermoplastic in processing—flexible and non-curing.
Q2: Why is superior shear strength important for IGUs?
A2: Shear strength determines the sealant’s ability to resist lateral forces such as wind load and thermal stress. This sealant maintains structural integrity under pressure, ensuring long-term performance.
Q3: Can this sealant replace traditional aluminum spacers?
A3: Yes. It functions as a warm-edge spacer, eliminating the need for rigid spacers while improving thermal insulation and reducing condensation risk.
Q4: Is it compatible with automated IGU production lines?
A4: Absolutely. The sealant is designed for continuous extrusion and sets immediately on cooling, making it ideal for high-speed, automated application systems.
Q5: Does it require a secondary sealant?
A5: While it provides primary sealing and spacer function, combining it with a secondary sealant such as silicone or polyurethane enhances long-term gas retention and structural strength.
Q6: Will it harden or crack over time?
A6: No. It retains flexibility and structural integrity over decades without hardening, thanks to its reactive and thermoplastic properties.
Q7: Is it safe for indoor environments and green buildings?
A7: Yes. The formulation is solvent-free and has zero VOC content, meeting environmental safety standards for indoor and sustainable construction.
Company Profile
Chengxin (Henan) Sealing New Material Tech Co., Ltd. is a Chinese manufacturer and supplier of insulating glass sealing materials. We have been professionally focusing on the sealing material industry for many years. With excellent product quality and a complete market service guarantee system, the company has formed a wide sales network in China. In the international market, "Chengxin" brand series products have been exported to Western Europe, America, the Middle East, Africa, Southeast Asia and other countries and regions. We look forward to becoming your long-term partner.