Hold thatTi0 2 New Natsyn polyisoprene rubber gives you lightcolored products with minimum whitener level We've put numbers to the color/ cost ratio in rubber. Tests using typical formulations of NATSYN® 400 and pale crepe were run on the Gardner colorimeter. Only the Ti0 2 was varied.
COST/COLOR RATIO NATSYN 4 0 0
SAMPLE FORMULATIONS
100.00
-
Paie Crepe
-
100.00
Zn Oxide
5.00
NATSYN 4 0 0
Stearic Acid Atomite
1.00 100.00-125.00
ι
5.00
PALE CREPE
Colorimeter reading
Pound/volume cost, $
Colorimeter reading
Pound/volume cost, $
T1O2 l e v e l : 30 p a r t s
78.7 (Rd) - 2 . 4 (a) + 1.2 (b)
0.2579
76.8 (Rd) - 1 . 8 (a) + 3 . 5 (b)
0.2702
TÏO2 l e v e l : 20 p a r t s
76.5 (Rd) - 3 . 1 (a) + 2 . 0 (b)
0.2166
72.6 (Rd) - 2 . 2 (a) + 3 . 9 (b)
0.2287
T1O2 l e v e l : 10 p a r t s
71.5 (Rd) - 3 . 6 (a) + 2 . 1 (b)
0.1757
66.3 (Rd) - 2 . 6 (a) + 4 . 7 (b)
0.1871
"ΠΟ2 l e v e l : 5 parts
65.9 (Rd) - 4 . 2 (a) + 2 . 0 (b)
0.1545
69.6 (Rd) - 3 . 2 (a) + 5 . 4 (b)
0.1663
1.00 100.00-125.00
T1O2
5.00- 30.00
5.00-
WING-STAY® L
0.50
0.50
U M Blue
0.10
0.10
Circo L i t e Oil
3.50
3.50
Sulfur
2.00
2.00
DURAX®
-
1.00
B-l-K
1.75
1.00
ALTAX®
1.25
-
,
30.00
Result: NATSYN got consistently bet ter lightness scores for equal whit ener levels. You get lb./volume savings because lessTi02 is needed.
Rd index m e a s u r e s l i g h t r e f l e c t i n g q u a l i t i e s : a index m e a s u r e s g r e e n ( m i n u s ) t o red (plus) c o m p o n e n t s , b index m e a s u r e s blue ( m i n u s ) t o y e l l o w (plus) c o m p o n e n t s .
NATSYN cuts processing costs. Needs no cleaning, guillotining or mill breakdown. Cure rate is uni form so there's no constant testing. NATSYN saves on handling, ship ping. Comes in compact 75-lb. bales. Loose or unitized on pallets. Polyethylene-wrapped in bags or in 5-ply silicone-lined paper bags. No
freight or pier charges. No stock piling—delivery is usual!y24hours. Technical representatives from 20 nationwidefield offices will serve you quickly. Call us. Or use the at tached reply card for more infor mation and evaluation samples. Hold down the cost of light-col ored rubber products. Use NATSYN.
GOODYEAR
CHEMI C/\I_S C & E N 53
