Alkoxy Cure Silicone Sealant for Clean Room Use

Alkoxy Cure Silicone Sealant for Clean Room Use

Product Data

ALKOXY CURE SILICONE SEALANT FOR CLEAN ROOM USE

TOSSEAL 80-SC (SUPER CLEAN)

TOSSEAL 80-SC is a one-component alkoxy cure silicone sealant, which cures to a flexible rubber upon contact with moisture in the air. The low-molecular-weight siloxane content, which is found in silicone sealing material and is a source of contamination, has been reduced as far as possible in this product. TOSSEAL 80-SC is designed for the clean room use for the production of semiconductor and precision electronic devices.

KEY FEATURES

  • LOW CONTAMINATION
  • Low-molecular-weight siloxane, which is contained in silicone sealing material and is a source of contamination, has been reduced
  • ALKOXY CURE TYPE
  • No harsh odor during cure
  • Non-corrosive to metal
  • No adverse affect on areas in contact with filter gel (addition-type silicone gel)
  • Excellent adhesive properties, adheres well to various substrates
  • ONE-COMPONENT PRODUCT
  • Easy to use
  • AS A SILICONE SEALING MATERIAL
  • Superior durability
  • Excellent chemical resistance

APPLICATIONS

  • Air-tight seal for assembly of clean rooms
  • Air-tight and waterproof seal for electrical/electronic machinery
  • Sealing material for corrosive metals
  • Sealant for filter gel

KEY PERFORMANCE PROPERTIES

1) TYPICAL UNCURED PROPERTIES(JIS A 1439)

PROPERTIES
Consistency / Paste
Specific Gravity (23°C) / 1.42
Tack-Free Time (23°C) / min / 40
Extrudability (5°C) / s / 5
Slump / mm / 0

2) TYPICAL CURED PROPERTIES (JIS A 1439)

Substrate / Aluminum
50% Modulus
MPa {kgf/cm²} / Initial stage / 0.40 {4.1}
After heating (14 days@90°C) / 0.38 {3.9}
After water immersion (7 days@23°C) / 0.38 {3.9}
Max. Tensile Strength
MPa {kgf/cm²} / Initial stage / 0.82 {8.4}
After heating (14 days@90°C) / 0.84 {8.6}
After water immersion (7 days@23°C) / 0.71 {7.2}
Elongation Under
Maximum Load
% / Initial stage / 220
After heating (14 days@90°C) / 260
After water immersion (7 days@23°C) / 210
Cohesive Failure
% / Initial stage / 100
After heating (14 days@90°C) / 100
After water immersion (7 days@23°C) / 100

3) PHYSICAL PROPERTIES (JIS K 6249)

PROPERTIES
Hardness (Type A) / 38
Tensile Strength / MPa {kgf/cm²} / 2.0 {20}
Elongation / % / 410

4) LOW-MOLECULAR-WEIGHT SILOXANE CONTENT

D4~D10
TOSSEAL 80-SC / 0.008
TOSSEAL 381 (general purpose) / 0.530

Analysis Method: Using n-hexane, the low-molecular-weight siloxane was extracted from cured material and measured by gas chromatography.

Low-molecular-weight siloxane (D Unit)

5) ADHESIVE PROPERTIES

SUBSTRATE / ADHESION
NO PRIMER / TOSPRIME D
Aluminum /  / 
Anodized Aluminum /  / 
Stainless Steel /  / 
Vinyl Chloride Film Coated Steel /  / 
Acrylic Painted Aluminum /  / 
Polycarbonate /  / –
Acrylic /  / –
Glass /  / 

:Good adhesion–:Primer should not be used

HANDLING AND SAFETY

  • Thoroughly clean substrate with a suitable solvent such as alcohol, acetone, or toluene. Allow to dry completely before proceeding.
  • Wear eye protection and protective gloves when handling this product. Do not get uncured sealant in the eyes or mouth. Extended contact of uncured sealant with the skin may cause irritation and should be avoided.
  • Sealing material may change color when in contact with some synthetic rubbers such as EPT and chloroprene.
  • Adequate ventilation must be maintained in the work place at all times.

STORAGE

  • Store in a cool place away from direct sunlight.
  • Keep out of the reach of children.

PACKAGING AND COLORS

  • 333ml cartridge available in cartons of 10

White (W), Light gray (G2), Ivory (W2), Light ivory (W3)

Issued Mar. 2001/1st revised Mar. 2002, TOSSEAL 80-SC E

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