company tower banner
Soudal USA Company Logo
Product: Soudasil HT1 is a one-part acetoxy silicone sealant that withstands very high temperatures.

Product Type: 1K (1 component) Sealant

Cure Method: Moisture Cure

Chemical Family: Silicones

  • TypeDocument Name
View All Documents

Knowde Enhanced TDS

Identification & Functionality

Chemical Family

Features & Benefits

Labeling Claims
Characteristics
  • Very easy application
  • High temperature resistance
  • Stays permanently elastic after curing
  • Typical acetic smell
  • Excellent UV resistance
  • Not paintable

Applications & Uses

Markets
Cure Method
Applications
  • Creation of heat resistant gaskets
  • Sealing between metal part
  • Gaskets in pumps and motors
  • Sealing in heating systems
  • Sealing in kitchen machinery
Methodology

Surfaces:
Type: all usual surfaces

  • State of surface: clean, dry, free of dust and grease
  • Preparation: No primer required for non-porous surfaces.
  • We recommend a preliminary compatibility test.

 Application:

  • Method: Caulking gun
  • Conditions: 40° F to 95° F
  • Finish: soapy water before skinning
  • Repair With: Soudasil HT1
  • Clean Up: white mineral spirit immediately after use

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Application Temperature Range-35 to +140°F
Artificial WeatheringNo CrackingASTM C 793
BasePolysiloxane
Curing SystemMoisture Cure
Curing Time (1/8” Diameter Bead, 75ºF & 50 relative humidity)48.0hrs
Elongationmin. 350ASTM D 412
Hardness (+/- 5)20.0Shore AASTM C 661
Movement Capability(+/- ) 25minutesASTM C 719
Sag (Vertical Displ.120ºF)No sagASTM C 639
Service Temperature Range-40 to +500°F
Skin Formation (75ºF, 50 Relative Humidity)6.0 - 7.0minutes
Stain And Color ChangePassesASTM C 510 mortar
Tack-Free Time25.0minutesASTM C 679
Tensile Yield170.0psiASTM D 412
VOC (3%)30.0g/L

Regulatory & Compliance

Certifications & Compliance
Meets

ASTM C 920, Type S, Grade NS, Class 25, Use NT, A. Federal Specification TT-S-00230C, Type II, Class A. FDA Regulations 21 CFR Section 177.2600: "Rubber articles intended for repeated use”.

Limited Warranty

SOUDAL warrants product to be of good quality and will replace or, at our election, refund the purchase price of any products proved to be defective. Satisfactory results depend not only upon quality products, but also upon many factors beyond our control. Therefore, except for such replacement or refund, SOUDAL MAKES NO WARRANTY OR GUARANTEE, EXPRESSED OR IMPLIED, INCLUDING WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY, RESPECTING ITS PRODUCTS, and SOUDAL shall have no other liability with respect thereto. Any claim regarding product defect must be received in writing one (1) year from the date of shipment. No claim will be considered without such written notice or after the specified time interval. User shall determine the suitability of the products for the intended use and assume all risks and liability in connection therewith.

Safety & Health

Health and Safety Recommendation

KEEP OUT OF REACH OF CHILDREN. Avoid skin and eye contact. On Contact, uncured sealant could cause irritation to skin and eyes. In case of eye contact, flush eyes with warm water for 15 minutes, call a physician. For skin contact, remove sealant with a paper towel. If swallowed, do not induce vomiting, call a physician. Soudasil HT1 is manufactured for professional use only.

Packaging & Availability

Packaging Type
Packaging

10.1 fl. oz. cartridges

Storage & Handling

Shelf Life

12 months in unopened packaging in a cool and dry storage place at temperatures between +41° F and +77° F