Koester USA | We Solve Moisture Vapor and Alkalinity Problems
 
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We Solve Moisture Vapor and
Alkalinity Problems
VAP 1® 2000 and VAP 1® pH
   
   
     
   
VAP 1® 2000
 
DEW POINT CALCULATION CHART
Relative Humidity
Ambient Air Temperature - Fahrenheit
20
30
40
50
60
70
80
90
100
110
120
90%
18
28
37
47
57
67
77
87
97
107
117
85%
17
26
36
45
55
65
75
84
95
104
113
80%
16
25
34
44
54
63
73
82
93
102
110
75%
15
24
33
42
52
62
71
80
91
100
108
70%
13
22
31
40
50
60
68
78
88
96
105
65%
12
20
29
38
47
57
66
76
85
93
103
60%
11
19
27
36
45
55
64
73
83
92
101
55%
9
17
25
34
43
53
61
70
80
89
98
50%
6
15
23
31
40
50
59
67
77
86
94
45%
4
13
21
29
37
47
56
64
73
52
91
40%
1
11
18
26
35
43
52
61
69
78
87
35%
-2
8
16
23
31
40
48
57
65
74
83
30%
-6
4
13
20
28
36
44
52
61
69
77
SURFACE TEMERATURE ATE WHICH CONDENSATION OCCURS

DEW POINT

Temperature at which moisture will condense on surface. No coatings should be applied unless surface is a minimum of 5 degrees above this point. Temperature must be maintained during curing.

EXAMPLE

If air temperature is 70 degrees F and relative humidity is 65%, the dew point is 57 degrees F. No coating should be applied unless surface temperature is 62 degrees F minimum.

 
 
       
       
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Koester American Corp. • 2585 Aviator Drive • Virginia Beach, VA 23453 • Tel.(757) 425-1206 • FAX (757) 425-9951
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