HP-9900Neutral structural silicone sealant

The highest-strength grade in the neutral range — ≥1.8 MPa tensile, service from −50°C to +150°C — for structural bonding and sealing on curtain walls.

HP-9900 neutral structural silicone sealant
At a glance

Key figures

590 ml, 20 pcs/ctnNet weight
15–30 minutes (at 25°C)Skinning time
−50°C to +150°CService temperature
+5°C to +40°CApplication temperature
Technical data sheet

HP-9900 specifications

HP-9900 — technical data
PropertyValue
AppearanceSmooth paste, available in various colors
Density (20°C)1.55 ± 0.05 g/cm³
Curing methodNeutral cure, room temperature
Skinning time15–30 minutes (at 25°C)
Curing time48–72 hours (depending on thickness)
Application temperature+5°C to +40°C
Service temperature−50°C to +150°C
Tensile strength≥1.8 MPa
Elastic modulus0.6–1.0 MPa
Elongation at break≥200%
Shore A hardness30–40
Water / UV / ozone resistanceExcellent
ColorWhite, black, customizable
Net weight590 ml, 20 pcs/ctn

Values as published in the product datasheet and on the packaging. Typical values, not a specification. Always run a compatibility and adhesion test on the actual substrate before full application.

Features

What it does

Single componentReady to use, no mixing required.
Neutral cureNo acidic components, so no corrosion on building materials.
High strength and adhesionSuperior bond strength for demanding structural work.
Medium to high modulusBalances elasticity against structural stiffness.
Excellent flexibilityRetains elongation and water-tightness after cure.
Outstanding weather resistanceResists aging, UV, ozone and temperature extremes.
Applications

Where it goes

  • Structural bonding of glass, stone, aluminium panel curtain walls and insulation panels
  • Offset or butt joint sealing of glass in curtain walls and skylights
  • High-rise and industrial structural bonding
  • Semi-hidden and fully hidden frame curtain wall designs
Not sure this is the right grade? Send us the substrate and joint width — we will name one.
Enquiries

Order HP-9900

Tell us the volume and destination port. You get a datasheet and a price, usually within 24 hours.

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