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XtraBond® HT - High Temperature RTV Silicone Sealant

Chemical Family
Silicones

XtraBond® HT is a one part, easy to use, non-slumping paste that cures to a silicone rubber when exposed to atmospheric moisture at room temperature. This product is engineered to provide a durable, watertight bond when exposed to continuous temperatures ranging from -40° to 500°F on a continuous basis – while maintaining its integrity at up to 600°F for intermittent time periods. Its unique formulation acts as both a thermal and electrical insulator as well, so it is ideal for sealing around heating elements.

Properties

Physical Form
Paste

Product families

Ready-to-Use Products — Adhesives & Sealants
  • Caulks & Sealants

Other characteristics

Brand
XtraBond
Cure Method
Moisture Cure
Product Type
1K (1 component) Sealant
Application Area

Electrical Heating Elements, Engine, HVAC Insulation, Insulators, Ovens, Pipes; Electrical Heating Elements; Engine; HVAC Insulation; Insulators; Ovens; Pipes

Application Method
Gun
Usage

Xtrabond® HT can be used for a variety of applications including, but not limited to, sealing around heating elements, furnace vent pipes, industrial ovens, smoke stacks, engine parts, fireplaces, HVAC, etc.

Color
Red
Markets
  • Automotive & Transportation
  • Building & Construction
  • Consumer Goods
  • Electrical & Electronics
  • Industrial
Storage

Be sure to rotate inventory accordingly. Materials must be properly stored in a low humidity (max. 50% RH) environment at room temperature (71 - 75°F) in their unopened container.

Features
  • Approved in high temperature areas
  • Non sag red formula
  • Insulates electrically
  • Up to 600°F
  • Insulates thermally
  • Non-sag
PACKAGING
  • Cartridges
  • Drums
Shelf LIfe

Cartridges/sausages, use within 18 months from date of manufacture.; Pails/drums, use within 12 months from date of manufacture.

Cure
Moisture Cure
Technology
Ready-to-Use Products
Packaging Type
  • Cartridges
  • Drums
Specifications
XtraBond®HT meets or exceeds the requirements of NSF/ANSI 51
Food equipment materials
ASTM C920 type S, grade NS, class 25, use NT, G, M, A
Federal specification
TT-S-00230C Type II, Class A, TT-S-001543A Type non-sag, Class A
Use Direction

For best results, prepare a clean surface; Cut nozzle to desired bead size; Apply with caulking gun, forcing sealant onto the substrate, then tool if needed; Clean excess material with mineral spirits or similar solvent

Application Methods
Gun
Surface Preparation

The substrate must be clean, dry, frost free, sound, and free of any oils, grease or incompatible sealers, paints or coatings that may interfere with adhesion.; Do not apply if surface is damp or contaminated.; It is recommended all substrates are tested prior to application.; Primers are not required for most substrates.

Technical data

Table 1 of 1

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CharacteristicValueUnitMethod
Shore A20 - 30—ASTM C661
Movement Capacity0.25%ASTM C719
Sag/Slumpmax. 0.2inchASTM D2202
StainingNone—ASTM D2203
Elongation (at Break)400 - 450%ASTM D412
Tensile Strength180 - 250psiASTM D412
100% Modulus of Elasticity50 - 75psiASTM D412
UV Rating (after 2500 hours)No discoloration or change in appearance—ASTM G154
VOC (Less water and exempt solvent)max. 23g/LEPA Method 24
Solidsmin. 96%Internal Method
Service Temperature-40 to 500°FInternal Method
Cure Rate (Bead, in 24 hours)0.25inchInternal Method

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