(c)
Reclean with aliphatic naptha and dry with clean dry gauze.
(d)
Apply Hysol TE1005 resin mixed 100 parts of resin with 15 parts of Hysol HD3561 hardener to damaged area. Use hand pressure to force resin into recesses. Use of spatula, putty knife, etc. may aid in restoring desired surface contours. Pot life is approximately 45 minutes.
(e)
Allow resin to cure at room temperature for 24 hours or at 140° for 2 hours.
(f)
Sand surface to fair out any roughness, and to remove any glossy finish.
(g)
Paint entire decorative surface of repaired part. Use BMS 10-55 water base paint. Maximum thinning ration 10 parts paint to 1 part water. Maximum dry film thickness,
2.0 mils. Minimum drying time 4 hours at 75°F, or 1.5 hours at 130°F. Spray apply. Allow 30 minutes flash-off time before heating to speed drying.
(5) Repair of Cracks
(a) Drill crack stop holes at least 1/16-inch diameter, then machine crack open until width is at least thickness of part.
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(b)
Sand back surface to remove all gloss and clean with naphtha.
(c)
Apply 181 glass fabric impregnated with Hysol TE1005 mixed with 15士2 parts per hundred Hysol HD3561 hardener. Reinforcement must be at least as thick as part where crack was. Step back each layer . inch on all edges. If crack is at edge, stepping back can be eliminated at that edge.
(d)
Sweep off excess resin and cure the reinforcement.
(e) Prepare decorative surface as in AE.(4), Repair of Deep Gouges. AF. Repair Method No. 30
(1)
General
(a) this repair is for “bubbled” or delaminated areas of vinyl decorative facing bonded to a substrate.
(2)
Equipment and Materials
(a)
Lacquer -hi-speed
(b)
Syringe (#1011 Jelco 3 c.c. syringe fitted with #20 X 1 inch long monoject 250 needle)
(c)
Adhesive - Eastman 910
(3)
Repair: (“bubbled” or delaminated area)
NOTE: Do not repair “bubbled” areas under condensing humidity atmospheric conditions. Condensed water in bubble will result in poor adhesion.
(a)
Puncture an entry and exit port at each end of bubbled or delaminated area using a sharp pointed knife or equivalent.
(b)
Cover exit port with masking tape.
(c)
Insert needle of a syringe (#1011 Jelco 3 c.c. syringe fitted with #20 X 1 inch long monoject 250 needle) into entry port and evacuate air.
NOTE: Use syringe needle specified in step (c). A larger needle will make repair of port holes difficult and smaller needles will not allow satisfactory delivery of adhesive.
(d)
Remove masking tape covering exit port.
(e)
Inject Eastman 910 adhesive through entry port using syringe.
NOTE: Approximately . c.c. of adhesive should be injected for approximately 4 square inches area delaminated. Do not inject an excessive amount of adhesive as an excess may result in a visible ring at edges of delaminated area.
(f)
Starting at center of delaminated area, sweep out excess adhesive through ports using a squeegee.
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(g)
Remove squeezed-out adhesive immediately with cheesecloth.
(h)
Rub delaminated area with clean cheesecloth until adhesive has "set-up" (approximately 2 minutes).
(i)
Touch up ports with lacquer (Hi-Speed Lacquer, Sherwin-Williams Paint Company). Match color of lacquer to color of decorative facing material. When necessary, dull lacquered area after it has dried by rubbing with cheesecloth or pencil eraser.
AG. Repair Method No. 31
(1)
General
(a)
This repair method is for the repair of Tedlar delamination from vinyl-aluminum panels.
(b)
This repair method is intended for edge delamination of Tedlar from vinyl-aluminum panels where the Tedlar has been peeled back no more than 1/4 inch and has not been torn or stretched. This repair may also be used for overcoating small scratches, tears, etc., with clear lacquer where applicable.
(2)
Equipment and Materials
(a)
Sherwin Williams semigloss clear high-speed lacquer or clear vinyl-acrylic lacquer.
(b)
Aliphatic Naptha – TT-N-95A
(3)
Repair
(a)
Clean surfaces to be repaired with BMS 3-2 solvent or naphtha.
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