MIL-DTL-62474F
b. Type I and II (except autoclave).
1. Press platen temperature increased to 330 +10°F (166 +6°C).
2. Dwell in accordance with schedule of Table II (Class A and B) with platens at
330 +10°F (166 +6°C). Use Table IIa for dwell time based upon areal
densities (AD) of the ply layup for class C and D laminates.
3. Press platen temperature reduced to a maximum of 180°F (82°C) before
laminate removal.
c. Type II (autoclave)
1. Autoclave temperature increased to 330 +10°F (166 +6°C).
2. Dwell in accordance with Table II (Class A and B) with autoclave at
330 +10°F (166 +6°C). Use Table IIa for dwell time based upon areal
densities (AD) of the ply layup for class C and D laminates.
3. Autoclave temperature reduced to a maximum of 180°F (82°C) before
laminate removal.
TABLE II. Laminating dwell times for Class A and B.
Laminate plies
Dwell time
(number)
(minutes)
1-10
30
11-20
45
21-30
75
31-40
75
TABLE IIa. Laminating dwell times for Class C and D.
Laminate AD (psf)
Dwell time (minutes)
< 1.5
30
1.5 3.0
45
3.0 4.5
75
> 4.5
75
3.3.3 Finished laminate. The finished laminates shall consist of the specified number of
plies (A and B) or areal density (C and D) sandwiched between single peel-plies which can be
incorporated in the lamination process. Peel-plies coated with a release agent shall not transfer
to the laminate surfaces. All cutting and machining of laminate panels shall be done with the
peel-plies intact. Wet cutting and machining procedures shall be followed by a drying process.
The drying process shall consist of drying the panel in a forced draft or convection type oven in a
stream of ambient air heated to 200 +10°F (93 +6°C) for a period of not less than four hours.
NOTE: This drying requirement shall be waived if an abrasive water-jet cutter is used. Any
resulting moisture film remaining on cut surface shall be removed by local heat application
(heater/blower) or by using clean, dry toweling. The finished laminate shall have an epoxy resin
sealed surface on all cut, trimmed or drilled hole edges which is applied after any required drying
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