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XtraBond® 250 - 100% RTV Silicone Sealant

Chemical Family
Silicones

XtraBond® 250 is a 100% acetoxy-based, high performance silicone engineered for applications that require a 100% silicone solution. The product is formulated as a one component, mildew resistant sealant that is permanently flexible and offers excellent adhesion.

Product families

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

Other characteristics

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

Bathrooms, Blast Freezer, Doors, Marine Applications, Windows; Bathrooms; Blast Freezer; Doors; Marine Applications; Windows

Application Method
Gun
Compatible Substrates & Surfaces
Marble
Usage

XtraBond®250 can be used for a variety of applications including, but not limited to, walk-in coolers & freezers, cultured marble, kitchen & bath, industrial, marine, etc.

Color
  • Black
  • Bronze
  • Transparent
Markets
  • Adhesives & Sealants
  • Automotive & Transportation
  • Building & Construction
  • Consumer Goods
  • Industrial
Storage

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

Features
  • Consistent gunablility & tooling
  • Approved for cultured marble
  • Mildew resistant formula
  • Excellent adhesion
  • Non-paintable
  • Non-sag
PACKAGING
  • Catridges
  • Pails
  • Drums
Shelf LIfe

Cartridges/Sausages, use within 18 months from date of manufacture; Pails/Drums, use within 12 months from date of manufacture

Technology
Ready-to-Use Products
Packaging Type
  • Cartridges
  • Drums
  • Pails
Labeling Claims
Food Contact Acceptable
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, greases or incompatible sealers, paints or coatings that may interfere with adhesion. Do not apply if surface is damp or contaminated. It is recommended to test all substrates prior to applications. Primers are not required for most substrates.

Certifications and Compliance
NSF Approved
Ready to Use Product Features
  • Flexible
  • Good Adhesion
  • Good Sagging Resistance
  • High Performance
  • Mildew Resistant
  • Moisture Resistant
  • Room Temperature Vulcanizing
Compatible Substrates and Surfaces
Marble

Technical data

Table 1 of 1

15 rows
CharacteristicValueUnitMethod
Shore A15 - 25—ASTM C661
Movement Capacity0.25%ASTM C719
Sag/Slumpmax. 0.2inchASTM D2202
StainingNone—ASTM D2203
Elongation (at Break)400 - 450%ASTM D412
Tensile Strength200 - 250psiASTM D412
100% Modulus of Elasticity40 - 80psiASTM 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 400°FInternal Method
Cure Rate (Bead, in 24 hours)0.25inchInternal Method

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