LOW. TEMP. CAULKING COMPOUND

 

USDA Approved
HM-270TM
CONSTRUCTION SILICONE
SEALANT


DESCRIPTION
HM-270 is a high modulus, one-part RTV silicone sealant designed for glazing and sealing. Its cures at room temperature upon exposure to moisture in the air providing good tensile strength and excellent adhesion, usually without the use of a primer, to most non-porous building materials.
HM-270 easily withstands temperature extremes -60°F to +400°F. without adverse effects. It resistant to ultraviolet light and is
virtually unaffected by other harsh
environmental elements. HM-270
offers superior elasticity and long-life reliability. It forms a permanent watertight and weather proof bond to materials like glass, ceramics, aluminum, primed steel; and most plastics.

FEATURES
100% Silicone Rubber
Long-life Expectancy
+/-25% Movement Capability
Easy-extrusion in any weather
Excellent for non-porous materials
Waterproof and Weatherproof

USES
HM-270 Construction Silicone Sealant Is primarily used for structural or conventional type glazing and curtain wall sealing involving glass, plastic or metal. For general usage, HM-270 has many applications Including sealing skylights, solar panels, ventilators, aluminum siding and windows, heating/ air conditioning, duct work, recreational vehicles, and other glass, plastic or metal assemblies. HM-270 approved FDA-USDA for Indirect food contact usage in cold storage units

 

PHYSICAL PROPERTIES

Type

 

One-part Silicone rubber

Cure

 

Acetoxy cure @ RT upon exposure to moisture in the air

 

Tool/Work Time

 

5-10 minutes

Tack Free Time

 

20 minutes

Cure Time

 

24 Hours

Fall Adhesion Development

 

14 days

Shrinkage

 

Nil

Hardness (ShoreA)

 

26

Tensile Strength

 

300 psi

Peel Strength

 

22 ppi -Glass


 

17 ppi -Aluminum

Tear Strength

 

40 ppi

Dielectric Strength

 

22 kv/mm

Dielectric Constant

 

2.7

Elongation

 

500%

Modulus @ 100% Elongation

 

72 psi

Joint Movement Capability

 

25% after 14 day cure

Staining

 

None

Ozone Resistance

 

Excellent

UV Resistance

 

Excellent

Application Temperature

 

30F to 140F

Service Temperature

 

60f to 400f

Shelf Life

 

12 months @ 75 unopened

Clean up


Mineral sprints 





SPECIFICATIONS

Pro-Series HM-270 meets or exceeds the following specifications:

Federal Spec. TT-S-001543A (COM-NBS) Class B

Federal Spec. TT-S-00230C (COM-NBS) Type II Class B

ASTM C 920-86 Type S, NS, NT

Canadian Spec. 19-GP-9Ma, Type 2

FDA-USDA Approved under food additive regulation 121.2514

 

LIMITATIONS

Pro-Series HM 270 is not recommended for use with concrete, marble, oily woods, limestone, brick, lead surfaces, and vinyl including the following applications:

Any joints immersed in water

(swimming pools, boats, etc.)

Horizontal joints or traffic bearing joints where abrasion resistance is required (walkways, driveways, runways, etc.)

In totally confined or air-free spaces

 

Painting of silicones will be unsuccessful since paint films do not have comparable elastic characteristics. 

 

VP-275 Multi-Purpose Silicone Sealant is recommended for applications involving wood, vinyl, and masonry substrates such as brick, concrete, limestone, or marble.

 

PACKAGING

10.5 Fl. oz. cartridges-12 per case

(item No. 27011-X)

 

COLOR AVAILABILITY

Clear 000, White 001, Black 003, Bronze 201, Brown 205, Almond 427, Gray 509.

 

STORAGE

Store in cool, dry area at temperatures not greater then 80oF.  Use within twelve (12) months of date of manufacture.

 

COVERAGE

1/4” bead size: approx. 31 lin. Ft. per 10.5 oz. cartridge.

 3/8” bead size: approx. 14 lin. Fl. per 10.5 cartridge

  


 

 

Epoxy Liquids

Liq Ice Melt


13900 Jog Road Ste. 203-208
Delray Beach, FL 33446

FOR PRICING AND PACKAGING, PLEASE CALL:

Phone:  (612) 371-4446
Toll Free:  (800) 879-9729
Fax:  (612) 371-4577

Email: sk@techliteproducts.com

Copyright © 1998-2014 TECHLite Products Corp.   All rights reserved.
All specifications subject to change without notice.
Other products referred to herein are trademarks or
registered trademarks of their respective companies or mark holders.