SYNRESIN SDA - 40L

Short oil, glycerol esterified alkyd resin, modified with castor oil ( In situ dehydration)

Principal properties

Excellent solubility in aromatic solvents. Very good colour retention up to approx. 150C. Very good hardness and very high gloss in Stoving enamels, excellent adhesion and impact resistance.

Applications

White and coloured stoving enamels for aluminum and other metals. Nitro cellulose primers.

Composition

Phthalic anhydride Appr. 42 %
Oil Appr. 40 %
Type of oil Dehydrated castor oil. (In situ dehydration)

Physical constants

Viscosity 50% solids in xylene at 25 C in FC 4 80 - 100 sec
Acid value 15 max.
Colour Gardner scale 5.0 max

Solubility

M.T.O Limited
Xylene Complete
Natural Turpentine Limited
n-Butyl acetate Complete
Methyl ethyl ketone Complete
n-Butanol Limited

Compatibility

SYNRESIN MRGly Complete
Long oil alkyd Incomplete
SYNRESIN NDA - 32 Complete
SYNRESIN MF & UF Complete
Nitro cellulose 1/2 sec Complete

Ratio, solids base

Amino resin: SDA-40 1 : 1 to 1 : 4
Nitro cellu. 1/2 sec.: SDA-40 2:1 to 1 : 2

Delivery form

SYNRESIN SDA - 40L 70% in xylene

STARTING POINTS

Nitro cellulose primer Nitro cellulose lacquer :

Kg

  

Kg
Nitro cellulose 1/2 sec., dr.w

5.23

 Nitro cellulose 1/2sec dry wt

10.70
Wetting alcohol

2.83

 Wetting alcohol

5.70
SYNRESIN SDA 40L as supplied

14.97

 SYNRESIN SDA - 40L

21.50
Tricrecyl phosphate

1.74

 SYNRESIN MRGly

5.00
Zinc chromate

2.18

 Xylene

26.10
Iron oxide red

12.00

 Ethyl acetate

14.00
Talc

7.63

 Butyl acetate

12.00
Thinner

53.42

 Butyl glycol

4.00
 

100.00

 Silicon oil 1% soln.in toluene

1.00
     

100.00

 

Spraying thinner in % by weight:
Methyl ethyl ketone%

15.00
Methyl isobutyl ketone%

15.00
n-Butanol%

10.00
Ethyl glycol,%

10.00
Toluene,%

30.00
Xylene,%

20.00

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