Material

Dk

Wetting angle

Hardness

Refraction of index

Specific Gravity

UV

Non UV

Colours

Type

Optimum Extreme

125

6.0^

77.5

1.433

1.15

Yes

Yes

Blue, Green, Grey

3

Optimum Comfort

65

6.0^

78.5

1.406

1.17

Yes

Blue, Green, Grey

3

Fluroperm 151

151

17.0

79.0

1.442

1.10

Yes

Blue

3

Fluroperm 92

92

16.0*

81.0

1.453

1.10

Yes

Blue, Green

3

Europerm 90

90

—

79.0

1.472

—

Grey

3

Fluroperm 60

60

14.7*

83.0

1.453

1.15

Yes

Yes

Blue, Green, Brown, Clear

3

Europerm 60

60

—

82.0

1.473

—

Yes

Yes

Grey

3

Fluroperm 30

30

12.8*

84.0

1.453

1.14

Yes

Blue, Green, Grey

3

Paragon HDS

58

14.7

84.0

1.449

1.16

Yes

Blue, Green

3

Alberta S

66

<10.0

84.0

1.475

—

Blue

3

Onsi 56

56

7.2

85.0

1.452

1.20

Yes

Yes

Blue, Green

3

Boston Quantum 2

145

—

81.0

1.414

1.27

Blue

3

Boston 7

73

33.0+

82.0

1.428

1.22

Blue

3

Boston XO 2

161

38.0+

78.0

1.424

1.19

Yes

Blue, Violet, Green

3

Boston XO 2

141

38.0+

78.0

1.424

1.19

Yes

Blue, Violet, Green

3

Boston XO

100

49.0+

81.0

1.415

1.27

Yes

Blue, Violet, Green

3

Boston EO

58

49.0

83.0

1.429

1.23

Yes

Blue, Green, Grey

3

Boston ES

31

52.0+

85.0

1.435

1.27

Yes

Yes

Blue, Green, Grey

3

XL40 ( Paraperm O2 )

16

23.1*

86.0

1.473

1.12

Clear, Blue, Grey

2

XL30 ( Alberta )

16

25.4

86.0

1.461

—

Clear, Green, Grey

2

XL20 ( Calgery )

6.5

26.6

86.0

1.461

—

Clear, Blue, Grey

2

P.M.M.A

60+

91.0

1.490

—

Blue, Green, Grey, Brown, Clear, 912

1