TABLE 1
COATING QUALITY CONFORMANCE INSPECTION REQUIREMENTS
Table Ic - Polyurethane Topcoat MIL-PRF-85285 Type II
(White and Colors)
______________________________________________________________________________
Test
Component A
Component B
Mixed
Min.
Max.
Min.
Max.
Min.
Max.
______________________________________________________________________________
Moisture content,
---
1
---
---
---
---
percent
Coarse particles,
---
---
---
---
---
.5
percent
Viscosity
---
---
---
---
See Note 1
Fineness of grind, Hegman
---
---
---
---
7
---
Drying to touch (See Note 2) ---
---
---
---
---
4
Dry hard (See Note 2)
---
---
---
---
---
8
VOC, grams per liter
---
---
---
---
---
340
Color
---
---
---
---
delta E+-1.0
Gloss 60 degree specular gloss
Gloss
---
---
---
---
---
90
Semi-gloss
---
---
---
---
15
45
Opacity
---
---
---
---
0.95
---
Flexibility
---
---
---
---
Conform
Fluid resistance
---
---
---
---
Conform
Heat resistance (cure)
---
---
---
---
Conform
Solvent resistance (cure)
---
---
---
---
Conform
Condition in container
---
---
---
---
Conform
Odor
---
---
---
---
Conform
Lead percent
---
---
---
---
---
0.06
Cadmium percent
---
---
---
---
---
0.06
Chromium percent
---
---
---
---
---
0.00
NOTES:
(1) Modify paragraph 3.6.4 Viscosity and Pot Life, of MIL-PRF-85285 as
follows:
The viscosity of the admixed coating, when tested in accordance
with ASTM D 1200 through a No. 4 Ford cup, shall be as follows:
Time from mix (minimum)
Maximum time through a No. 4 Ford cup
Initially
30 seconds
2 hours
60 seconds
4 hours
No gel
(2)
Modify paragraph 3.7.1 Drying Time, of MIL-PRF-85285
When applied by spray techniques and when tested in accordance with
ASTM D 1640, the coating shall be set-to-touch within four hours and
dry-hard within eight hours (see 4.6 and table I).
GENERAL NOTES:
-
Test methods as specified in MIL-PRF-85285.
-
Where "Conform" is indicated, refer to specific requirements of
MIL-PRF-85285.
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Appendix A Instructions for Modifying Section 01450N or 01451A to add
SECTION 09971
Page 37
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