Document ppz47w9KK4rx5eRwXkQZpxvVd

MARSHALL DEVELOPMENT LABORATORY STAND700rToftMtJtiAT!tN"G''',pRAd'T!i:CK 'W^WO - A DATE OF ISSUE - 9/30/65 SUPERSEDES; NEW 1. DESCRIPTION OF LINE; (a) General Description; The 890-& line is an alternate line for the 868-line auto motive quality MLucite*" non-metalllc acrylic lacquer. This line is supplied to industrial Sales for use mainly as casket finishes, (b) References ; Correspondence with the National Casket Company, Lancaster, Kentucky during 1964 and 1965. H. APPLICATION AND TESTING Refer to the 868-line formulating practice for physical con stants data. The application procedure for casket finishes comprises a bake-sand-bake system which is, as follows: 1. Spray 0.3 mil DPT 881-2038 Primer, reduced 1-1/2 parts 37767 thinner to one part 881-2038. Plash 1-2 minutes, 2. Immediately spray one heavy coat, then a mist coat to a DPT of 1.0 mil of 890-line lacquer, reduced equal parts with 37767 thinner, 3. Flash 10 to 15 minutes. 4. Spray one heavy coat to a DPT of 2.0 mils of 4550 clear, reduced 1.25 to 1 with 37767. 5. Plash 10 to 15 minutes, then prebake 15 min. at l8oP. 6. Cool and wet sand with 500 or 600 w/D sandpaper and odorless mineral spirits. 7. Clean up, 8. Reflow bake at one of the following schedules: 30' x 250F 15* x 270P 10 x 300P *-Registered Du Pont Trademark FP-890-A Page 2 9/30/65 III. FORMULATION (a) Pigmentations All 890-A line colors should meet the 868 line pigmentation practice but exterior durability is not required. Any unusual problems or deviation from this practice should be referred to the Marshall Development Laboratory for approval or alternate recommendations. (b) Vehicle Same as 8684&Ine. (c) Modifying Agent Same as 868-line. (d) Thinners ferred . All regular ''Lucite" thinners can be used but 37767 is pre IV. FORMULATING TABLES None V. MANUFACTURING PROBLEMS; Refer to 868-line VI REASONIFGK REVISION New MARSHALL DEVELOPMENT LABORATORY AFKims 10/6/65 A, F. KRAUSE Mi tS DUP030029303