Hood Container Corporation produces semi-chem corrugating medium in a variety of basis weights for standard, wet strength, and high performance applications.

Standard Medium

AdobeStock_302781318

Standard Medium

23M / 26M / 30M / 33M / 36M / 40M / 45M

Wet Strength Medium

AdobeStock_302781318

Wet Strength Medium

30MW / 33MW / 36MW / 40MW / 45MW

High Performance Medium

AdobeStock_302781318

High Performance Medium

HP23M / HP33M

Domestic Semi-Chem Medium Specifications - Imperial

Grade Code CharacteristicUnit of Measure23M26M30M33M36M40M45MHP23MHP33MMethod
Basis Weight Cond to 7.5% H20#/1000 ft2Nom.
Min.		23
22.1		26
25.0		30
28.8		33
31.7		36
34.6		40
38.4		45
43.2		33
22.1		33
31.7		Tappi T-410
Moisture%Min.
Nom.
Max.		7.5
9.5
11.5		7.5
9.5
11.5		7.5
9.5
11.5		7.5
9.5
11.5		7.5
9.5
11.5		7.5
9.5
11.5		7.5
9.5
11.5		7.5
9.5
11.5		7.5
9.5
11.5		Tappi T-412
Concora lbfMin.485455556060604855Tappi T-809
Ring Crush CD#/6inMin.262940496067803066Tappi T-822
Water Drop Penetration secMax.101010101010101010Tappi T-831
Wet Tensile * lbfMin.--2.83.23.84.85.0--Tappi T-404
*Wet Strength Grades Available (30MW, 33MW, 36MW, 40MW, 45MW)
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Domestic Semi-Chem Medium Specifications - Metric

Grade Code
Characteristic		Unit of
Measure		23M
112gsm		26M
127gsm		30M
146gsm		33M
161gsm		36M
175gsm		40M
195gsm		45M
220gsm		HP23M
112gsm		HP33M
161gsm		Method
Basis Weight Cond to 7.5% H20
Nom.
Min.
GSM
112
107.9
127
122.0
146
140.6
161
154.7
175
168.9
195
187.4
220
210.9
112
107.9
161
154.7
Tappi T-410
Moisture
Min.
Nom.
Max.
%
7.5
9.5
11.5
7.5
9.5
11.5
7.5
9.5
11.5
7.5
9.5
11.5
7.5
9.5
11.5
7.5
9.5
11.5
7.5
9.5
11.5
7.5
9.5
11.5
7.5
9.5
11.5
Tappi T-412
Concora
Min.
N(CMT)
214
240
245
245
267
267
267
214
245
Tappi T-809
Ring Crush CD
Min.
kN/m
0.76
0.85
1.17
1.43
1.75
1.96
2.34
0.88
1.93
Tappi T-822
Water Drop Penetration
Max.
sec
10
10
10
10
10
10
10
10
10
Tappi T-831
Wet Tensile *
Min.
kN/m
-
-
0.49
0.56
0.67
0.84
0.88
-
-
Tappi T-404
*Wet Strength Grades Available (30MW, 33MW, 36MW, 40MW, 45MW)
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Export Semi-Chem Medium Specifications - Imperial

Grade Code
Characteristic		Unit of
Measure		30ME33ME36ME40ME45MEMethod
Basis Weight Cond to 7.5% H20
#/1000 ft2
Nom.
Min.
30
28.8
33
31.7
36.0
34.6
40
38.4
45
43.2
Tappi T-410
Moisture
%
Min.
Nom.
Max.
7.5
9.5
11.5
7.0
9.0
11.0
7.5
9.5
11.5
7.5
9.5
11.5
7.5
9.5
11.5
Tappi T-412
Concora
lbf
Min.
60
70
70
75
62
Tappi T-809
Ring Crush CD
#/6 in
Min.
45
50
60
67
80
Tappi T-822
Water Drop Penetration
sec
Max.
10
10
10
10
10
Tappi T-831
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Export Semi-Chem Medium Specifications - Metric

Grade Code
Characteristic		Unit of
Measure		30ME
146gsm		33ME
161gsm		36ME
175gsm		40ME
195gsm		45ME
220gsm		Method
Basis Weight Cond to 7.5% H20
GSM
Nom.
Min.
146
140.6
161
154.7
175
168.9
195
187.4
220
210.9
Tappi T-410
Moisture
%
Min.
Nom.
Max.
7.5
9.5
11.5
7.0
9.0
11.0
7.5
9.5
11.5
7.5
9.5
11.5
7.5
9.5
11.5
Tappi T-412
Concora
N(CMT)
Min.
267
311
311
334
276
Tappi T-809
Ring Crush CD
kN/m
Min.
1.31
1.46
1.75
1.96
2.34
Tappi T-822
Water Drop Penetration
sec
Max.
10
10
10
10
10
Tappi T-831
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