Binder No.

Polymer content (%)

Loss on heating (%)

Penetration before TFOT (0.1 mm)

Retained Penetration after TFOT (%)

Control

0

0.190

60

69

PMMA1

4

0.16

53

79

5

0.15

48

82

6

0.12

44

86

7

0.10

38

89

8

0.08

37

89

PMMA2

4

0.18

56

73

5

0.17

52

74

6

0.15

50

76

7

0.14

46

80

8

0.12

45

80