Table II
COATING MATERIAL COMPOSITION REQUIREMENTS
Table IIa Composition of Polyurethane Topcoat (Modified PTFE-Pigmented
Fluoropolyurethane, White)
________________________________________________________________________
Composition
Ingredient
Kilograms
Liters
________________________________________________________________________
Component A
Poly(tetrafluoroethylene) *
112.95
52.65
Titanium Dioxide (ASTM D 476, Type IV)
68.04
17.03
Thixotrope **
---
---
Modified Fluoropolyol MODFPWC-50 ***
97.80
82.02
(Non-volatile)
Methyl Amyl Ketone (MAK)
119.95
147.20
Dibutyl tin dilaurate, 1.17 percent
2.27
2.76
(wt) solution in MAK
Component B (See "Note" below)
Desmodur N-3200 ****
84.64
75.70
Total
378.50
________________________________________________________________________
Table II
COATING MATERIAL COMPOSITION REQUIREMENTS
Table IIa Composition of Fluoropolyurethane Topcoat (Modified PTFE-Pigmented
Fluoropolyurethane, White)
________________________________________________________________________
Composition
Ingredient
Pounds
Gallons
________________________________________________________________________
Component A
Poly(tetrafluoroethylene) *
249.00
13.91
Titanium Dioxide (ASTM D 476, Type IV)
150.00
4.50
Thixotrope **
---
---
Modified Fluoropolyol MODFPWC-50 ***
215.60
21.67
(Non-volatile)
Methyl Amyl Ketone (MAK)
264.45
38.89
Dibutyl tin dilaurate, 1.17 percent
5.0
.73
(wt) solution in MAK
Component B (See "Note" below)
Desmodur N-3200 ****
186.60
20.00
Total
100.00
________________________________________________________________________
*
Pigment-grade poly(tetrafluoroethylene) (less than 6 microns average
particle size) is available as SST-3 from Shamrock Technologies,
MP-1200 from Dupont, PEFLU-727FX from Astor.
**
Thixotrope (Rheological additive) - The amount of thixotrope
SECTION 09970
Page 38
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