WOOD FABRIC

Exterior wood surfaces (fabric covered) will have a minimum of one brush coat of varnish, thinned with an equal portion of naphtha, and two brush or spray coats of clear tautening dope, Specification No. ANTT-D-514, prior to attachment of fabric. The fabric may be cemented in place with the second coat of clear dope, or may be laid on the dried second coat with cementing effected by wetting the fabric with thinner or thinned dope The finish over the fabric shall consist of a minimum of one brushed (first) coat and two sprayed coats of clear tautening dope followed by the necessary spray coals of pigmented dope.

10. FABRIC.

a. Exterior fabric parts will have a minimum of two brush and two spray coats of clear nitrate dope, Specification No. AN-TT-D-514 (aluminized dope vehicle, Specification No. AN-TT-D-551, is not a suitable substitute, as it does not have the tautening qualities of Specification No. AN-TT-D-514). The weight of clear dope coats should be between 2.5 and 3.5 ounces per square yard. This will be followed by two or more coats of aluminized dope prepared by addingS ounces per gallon pigment, aluminum paste, Specification No. AN-TT-A-461, to dope cellulose nitrate, clear, Specification No. AN-TT-D-551, before

thinning. The weight of the complete finish should be between 4.5 and 5.0 ounces per square yard. Patching will be accom­plished with clear dope, Specification No. AN-TT-D-514, applied in same manner and will be covered with suitably colored pigmented dope coats as prescribed for new fabric.

b. For emergency rejuvenation of old fabric, add a fluid ounce of each tricresyl phosphate and castor oil to 1 gallon of two to one mix of clear dope, Specification No. AN-TT-D-514, and blush retarding thinner, Specification No. AN-TT-T- 258. Apply one coat by brush to clean surface, followed by one spray coat, After several hours drying, spray one coat of aluminized dope, prepared as specified in paragraph 13.a,

SECTION III MARKINGS