Technical Sheet for ASI 388

CHARACTERISTIC
 TEST METHOD    
RESULTS
Shore A Hardness  
 ASTM D2240
 30±2
Tensile @ Break  
ASTM D412
  250±25 psi
Elongation @ Break
ASTM D412
400±25%
Modulus @ 100% Elongation
 ASTM D412  
  90±10 psi
Tear Strength  
  ASTM 624 (Die B)
30±10 ppi
Adhesion Strength (Peel)
TT-S-001543, 3.5.9
----
           Glass 
----
    10±2 ppi
     Aluminum (Primed)
----
  8±2 ppi
     Mortar (Primed)  
----
12±2 ppi
Sag, or Slump 
 TT-S-001543, 3.5.2
Nil
Shrinkage (Weight Loss) 
TT-S-001543, 3.5.5 
   <5%
Extrusion Rate
 1/8" orifice @ 50 psi 
 130±5 gm/min
Service Temperature  
  ----  
 -18°C to +50°C
----
----
  0°F to +120°F
Tack Free Time 
   TT-S-001543, 3.5.6
15 Minutes
Time to Full Cure (1/8" Bead)
 ---- 
48 Hours
Joint Movement Capability 
   4:1 Safety Factor
±25%
Chemical Resistance 
List Available
Excellent
Color Retention 
 ----
Excellent
Weather ability 
 ----
Excellent
Reactivity of Byproducts     
----
 Non-corrosive
Electrical Properties @ 72°F (22°C)
----
----
     Dissipation Factor
 ASTM D150
50 Hz - 0.0009
----
----
1 kHz - 0.0004
----
----
1 MHz - 0.0002
      Dielectric Constant  
ASTM D150  
50 Hz - 2.7
----
----
  1 kHz - 2.7
----
----
 1 MHz - 2.7
Volume Resistivity, .cm   
ASTM D257  
 2 x 1014
Surface Resistivity,
ASTM D257  
3 x 1015
Dielectric Strength, KV/mm
ASTM D149
 18

 

SAFETY PRECAUTIONS
Since ASI 388 is a neutral-cure system, no acetic or objectionable byproducts are evolved during cure. On direct contact, uncured sealant may irritate eyes. Flush well with water and call physician if irritation persists. Avoid prolonged contact with skin.

STORAGE
ASI 388, when stored in original unopened container at or below 32°C (90°F), has a shelf life of 12 months from date of shipment.

PACKAGING
ASI 388 is supplied in (80 ml.) syringe, (10.2 fl. oz.) caulking cartridge, (40 lb.) pail, (440 lb.) drum.

WARRANTY AND LIMITATIONS
ASI warrants that its products will meet its specifications. ASI shall in no event be liable for incidental or consequential damages. Except as expressly stipulated, ASI’s liability, expressed or implied, is limited to the stated selling price of any defective goods.

Underwriters Laboratories File E209770
General Description of Material:
    100% silicone sealant furnished in the form of cartridges.
    Material Modifications - There shall be no changes in the formulation or composition of the material unless previously cleared through Underwriters Laboratories Inc.
    Form of Shipment - The materials are produced and shipped as finished products.
 
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