High Quality High Temperature Sealant for Powder Coating Spray Paint

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Product Description

💡 Basic Information
Color
Grey
Composition
Polyurethane
Morphology
Self-Leveling Liquid
CAS No.
9009-54-5
Formula
CH3h8n2o
EINECS
210-898-8
Material
Polyurethane
Classification
Room Curing
Characteristic
Waterproof
Specification
600ml/sausage; 20kg/pail
HS Code
3506100090
Capacity
100000PCS/Year
High Temperature Sealant

Heat Curing High Temperature Adhesive and Sealant

Model: S857

S857 is a heat curing, solvent-free sealant based on a polyacrylic plastisol. It can be applied to clean, bare steel or electrocoat and accepts powder paint either cured or wet on wet. It's used in high heat applications (200°C) where resistance to heat degradation and color change is important.

Sealant Product
⚙️ Special Characteristics
  • Used for bonding clean steel or electrophoresis plate.
  • Can be sprayed with powder paint after wet adhesive or curing.
  • Ideal for sealing, waterproof, dustproof and anti-corrosion of inner/outer car body welds.
Application 1
Application 2
🚀 Application Examples
  • Adheres well to most E-coated substrates and oily metal substrates.
  • Suitable for powder-coating processes.
  • Surface cured after about 5 hours at room temperature exposure.
  • Sealing different metals: steel, aluminum, galvanized steel, etc.
  • High temperature resistance: 160-220 ºC (320-430°F) without aging.
  • Spot welding still possible after application.
  • Does not contain solvents or PVC.
Testing 1
Testing 2
📊 Specification Data Sheet
PROPERTY STANDARD/UNITS VALUE (S857)
AppearanceVisualWhite, homogeneous paste
Odor-Slight
Densityg/cm³1.50±0.05
Severs Viscosity25ºC, 0.4MPa7-20g/20s
Solid content%>99
Adhesion (Ecoat/Steel)80ºC*30minExcellent
Heat resistance200ºC*1hExcellent
HardnessShore D>20
Shelf lifeMonth9
🛠️ Application Solutions
  • Windshield sealant - SP86x
  • Automotive PU structural adhesive
  • Electronic potting sealant
  • Powder coating sealant
  • Waterproofing coating
  • Expansion joint self-leveling sealant
Solutions Chart
🌍 Global Presence & Packaging
Market Map Packaging Options

Available in 310ml cartridge and 400ml/600ml sausage.

❓ Frequently Asked Questions
What is the typical delivery time?
Normally, delivery time for sample orders is 3 to 7 days, while standard bulk orders take between 7-20 days.
Can I request free samples for testing?
Yes, you can contact us to arrange for free samples to verify product quality for your specific application.
Is there an OEM or ODM service available?
We offer comprehensive OEM label services and can provide market protection for your specific region.
What is the heat resistance range of S857?
S857 is designed for high-heat environments, resisting temperatures between 160-220 ºC (320-430°F) without aging or discoloration.
Is this sealant compatible with powder coating?
Absolutely. It is specifically formulated to accept powder paint whether applied wet-on-wet or after the sealant has cured.
What are the main substrates it adheres to?
It shows excellent adhesion to clean steel, aluminum, galvanized steel, and most E-coated or oily metal substrates.
Quality Control

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