Differences between clear glass and ultra clear glass


1.ultra clear glass has much lower glass self explosion ratio

Definition of self-explosion: The self-explosion of tempered glass is a shattering phenomenon that occurs without external force.

The starting point of the explosion is the center and spreads radially to the surrounding. At the starting point of the self-explosion, there will be two relatively large fragments with the characteristics of “butterfly spots”.

2. Color consistency

3. ultra clear glass has higher transmittance and solar coefficient.

ultra clear glass parameter

Thickness

transmittance

Reflectance

solar radiation

shading coefficient

Ug

soundproofing

UV transmittance

direct penatrating

reflecting

absorptivity

total

shortwave

longwave

total

(W/M2k)

Rm(dB)

Rw(dB)

2mm

91.50%

8%

91%

8%

1%

91%

1.08

0.01

1.05

6

25

29

79%

3mm

91.50%

8%

90%

8%

1%

91%

1.05

0.01

1.05

6

26

30

76%

3.2mm

91.40%

8%

90%

8%

2%

91%

1.03

0.01

1.05

6

26

30

75%

4mm

91.38%

8%

90%

8%

2%

91%

1.03

0.01

1.05

6

27

30

73%

5mm

91.30%

8%

90%

8%

2%

90%

1.03

0.01

1.03

6

29

32

71%

6mm

91.08%

8%

89%

8%

3%

90%

1.02

0.01

1.03

6

29

32

70%

8mm

90.89%

8%

88%

8%

4%

89%

1.01

0.01

1.02

6

31

34

68%

10mm

90.62%

8%

88%

8%

4%

89%

1.01

0.02

1.02

6

33

36

66%

12mm

90.44%

8%

87%

8%

5%

88%

1.00

0.02

1.01

6

34

37

64%

15mm

90.09%

8%

86%

8%

6%

87%

0.99

0.02

1.00

6

35

38

61%

19mm

89.73%

8%

84%

8%

7%

86%

0.97

0.02

0.99

6

37

40

59%

4. ultra clear glass has lower UV transmittance

clear glass parameter

Thickness

transmittance

Reflectance

UV transmittance

2mm

90.80%

10%

86%

3mm

90.50%

10%

84%

3.2mm

89.50%

10%

84%

4mm

89.20%

10%

82%

5mm

89.00%

10%

80%

6mm

88.60%

10%

78%

8mm

88.20%

10%

75%

10mm

87.60%

10%

72%

12mm

87.20%

10%

70%

15mm

86.50%

10%

68%

19mm

85.00%

10%

66%

5. ultra clear glass has higher production difficulty,thus cost is higher than clear glass

Ultra clear glass has high quality requirements for its ingredients quartz sand, also include the high requirements for iron content,natural ultra-white quartz sand ore is relatively scarce, and ultra clear glass has relatively high technological content, making production control difficult.the cost is around 2 times higher than clear glass.