Paper Tuner

Design your paper. See what it takes to make it.

Pick a grade and move any target to see what changes at the machine and what each change trades away.

Step 1. Choose your grade

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The Paper Tuner needs JavaScript. The order request form below works without it: describe the paper you need, or paste your current supplier's specification, and we tell you which grade meets it.

Typical values by grade

Machine Finished (MF) Bleached Kraft Paper

40 to 140 g/m²

Property	Applies to	Unit	Typical	Market range
Bendtsen roughness, top side	All weights	ml/min	300	130 to 400
Brightness (ISO)	All weights	%	84	82 to 95
Burst index	All weights	kPa·m²/g	3.7	3 to 4.4
Cobb 60 s, top side	All weights	g/m²	28	18 to 40
Moisture	All weights	%	6.2	5.7 to 7.2
Tear index CD	All weights	mN·m²/g	9.9	7.3 to 11
Tear index MD	All weights	mN·m²/g	8.7	7.2 to 11
Tensile index CD	All weights	N·m/g	41	35 to 57
Tensile index MD	All weights	N·m/g	84	64 to 110

Machine Glazed (MG) Bleached Kraft Paper

28 to 100 g/m²

Property	Applies to	Unit	Typical	Market range
Bendtsen roughness, top side	All weights	ml/min	110	73 to 150
Brightness (ISO)	All weights	%	83	78 to 90
Burst index	All weights	kPa·m²/g	3.9	3.5 to 4.9
Caliper	under 40 g/m²	µm	47	42 to 58
Cobb 60 s, top side	All weights	g/m²	24	21 to 26
Gloss	All weights	%	18	18 to 26
Moisture	All weights	%	5.7	4.5 to 7.5
Opacity	All weights	%	63	60 to 88
Porosity (Gurley)	All weights	s	27	12 to 50
Tear index CD	All weights	mN·m²/g	7.6	6.7 to 13
Tear index MD	All weights	mN·m²/g	6.9	6 to 9.4
Tensile index CD	All weights	N·m/g	51	43 to 61
Tensile index MD	All weights	N·m/g	95	46 to 110
Caliper	40 to 59 g/m²	µm	61	59 to 69
Caliper	60 to 79 g/m²	µm	84	75 to 95
Caliper	80 to 99 g/m²	µm	100	92 to 120
Caliper	100 to 129 g/m²	µm	120	110 to 140

Machine Glazed (MG) Unbleached Kraft Paper

18 to 120 g/m²

Property	Applies to	Unit	Typical	Market range
Burst index	All weights	kPa·m²/g	4.5	2.6 to 5.3
Caliper	under 40 g/m²	µm	54	48 to 57
Cobb 60 s, top side	All weights	g/m²	28	20 to 40
Moisture	All weights	%	6.5	5.5 to 7.5
Porosity (Gurley)	All weights	s	33	9.5 to 45
Stretch CD	All weights	%	3	2.7 to 4.1
Stretch MD	All weights	%	1.7	1.3 to 2.6
Tear index CD	All weights	mN·m²/g	9.6	9.4 to 13
Tear index MD	All weights	mN·m²/g	8.2	7.7 to 9.2
Tensile index CD	All weights	N·m/g	44	23 to 59
Tensile index MD	All weights	N·m/g	89	36 to 120
Caliper	40 to 59 g/m²	µm	74	69 to 80
Caliper	60 to 79 g/m²	µm	94	85 to 98
Caliper	80 to 99 g/m²	µm	120	110 to 140
Caliper	100 to 129 g/m²	µm	150	130 to 170

Extensible Sack Kraft Paper

70 to 125 g/m²

Property	Applies to	Unit	Typical	Market range
Cobb 60 s, top side	All weights	g/m²	30	22 to 40
Moisture	All weights	%	7.5	6 to 8.5
Porosity (Gurley)	All weights	s	16	8 to 25
Stretch CD	All weights	%	8.3	7.4 to 8.7
Stretch MD	All weights	%	7.7	7 to 8.4
TEA index CD	All weights	J/g	3.4	2.7 to 3.4
TEA index MD	All weights	J/g	3.3	3 to 3.8
Tear index CD	All weights	mN·m²/g	14	13 to 15
Tear index MD	All weights	mN·m²/g	13	11 to 14
Tensile index CD	All weights	N·m/g	60	53 to 69
Tensile index MD	All weights	N·m/g	79	72 to 86

Semi-Extensible Sack Kraft Paper

70 to 125 g/m²

Property	Applies to	Unit	Typical	Market range
Cobb 60 s, top side	All weights	g/m²	30	22 to 40
Moisture	All weights	%	7.2	6 to 7.5
Porosity (Gurley)	All weights	s	15	8 to 25
Stretch CD	All weights	%	7.6	7.3 to 9
Stretch MD	All weights	%	6.2	5.7 to 6.5
TEA index CD	All weights	J/g	3	2.6 to 3.4
TEA index MD	All weights	J/g	2.9	2.5 to 3.3
Tear index CD	All weights	mN·m²/g	13	11 to 16
Tear index MD	All weights	mN·m²/g	11	10 to 14
Tensile index CD	All weights	N·m/g	58	50 to 66
Tensile index MD	All weights	N·m/g	80	70 to 90

Standard Sack Kraft Paper

On request

70 to 125 g/m²

Property	Applies to	Unit	Typical	Market range
Cobb 60 s, top side	All weights	g/m²	30	22 to 40
Moisture	All weights	%	7.3	6 to 7.5
Porosity (Gurley)	All weights	s	18	6 to 30
Stretch CD	All weights	%	6.9	6.8 to 7.8
Stretch MD	All weights	%	2.5	2.2 to 2.7
TEA index CD	All weights	J/g	2.7	2.2 to 3.1
TEA index MD	All weights	J/g	1.6	1.5 to 1.9
Tear index CD	All weights	mN·m²/g	13	10 to 14
Tear index MD	All weights	mN·m²/g	12	9 to 14
Tensile index CD	All weights	N·m/g	55	36 to 70
Tensile index MD	All weights	N·m/g	95	70 to 110

Supplied on request. Tell us the job. If no mill runs it yet, we take one to your specification: our fiber, our chemistry, qualification runs on site.

Corrugating Medium (Fluting)

90 to 300 g/m²

Property	Applies to	Unit	Typical	Market range
Burst index	All weights	kPa·m²/g	1.8	1.5 to 2.3
Cobb 60 s, top side	All weights	g/m²	55	45 to 88
Moisture	All weights	%	7.5	7 to 9
SCT index CD	All weights	N·m/g	17	14 to 20
Caliper	80 to 99 g/m²	µm	160	140 to 180
CMT	80 to 99 g/m²	N	120	120 to 180
Caliper	100 to 129 g/m²	µm	200	170 to 220
CMT	100 to 129 g/m²	N	190	160 to 210
RCT CD	100 to 129 g/m²	kN/m	0.85	0.65 to 1.1
Caliper	130 to 169 g/m²	µm	240	210 to 270
CMT	130 to 169 g/m²	N	230	200 to 260
RCT CD	130 to 169 g/m²	kN/m	1	0.82 to 1.5
Caliper	170 to 219 g/m²	µm	300	260 to 340
CMT	170 to 219 g/m²	N	290	240 to 330
RCT CD	170 to 219 g/m²	kN/m	1.4	1 to 1.9
CMT	220 to 299 g/m²	N	360	320 to 400
RCT CD	220 to 299 g/m²	kN/m	1.9	1.6 to 2.3

Kraftliner

On request

115 to 300 g/m²

Property	Applies to	Unit	Typical	Market range
Burst index	All weights	kPa·m²/g	4.3	3.7 to 4.4
Cobb 60 s, top side	All weights	g/m²	30	29 to 35
Moisture	All weights	%	7.8	7 to 8.1
Porosity (Gurley)	All weights	s	85	30 to 150
SCT index CD	All weights	N·m/g	20	17 to 23
Caliper	100 to 129 g/m²	µm	150	130 to 170
RCT CD	100 to 129 g/m²	kN/m	1	0.9 to 1.3
Caliper	130 to 169 g/m²	µm	190	170 to 220
RCT CD	130 to 169 g/m²	kN/m	1.4	1.1 to 1.7
Caliper	170 to 219 g/m²	µm	240	210 to 270
RCT CD	170 to 219 g/m²	kN/m	2	1.7 to 2.4
Caliper	220 to 299 g/m²	µm	310	280 to 350
RCT CD	220 to 299 g/m²	kN/m	2.9	2.2 to 3.5
Caliper	300+ g/m²	µm	400	370 to 440
RCT CD	300+ g/m²	kN/m	3.7	2.7 to 4.4

Supplied on request. Tell us the job. If no mill runs it yet, we take one to your specification: our fiber, our chemistry, qualification runs on site.

Testliner

90 to 300 g/m²

Property	Applies to	Unit	Typical	Market range
Burst index	All weights	kPa·m²/g	2.5	1.8 to 2.7
Cobb 60 s, top side	All weights	g/m²	39	33 to 45
Cobb 60 s, wire side	All weights	g/m²	45	40 to 80
Moisture	All weights	%	7.2	6.5 to 8.3
SCT index CD	All weights	N·m/g	17	13 to 18
Caliper	100 to 129 g/m²	µm	160	140 to 190
RCT CD	100 to 129 g/m²	kN/m	0.93	0.75 to 1.1
Caliper	130 to 169 g/m²	µm	200	180 to 230
RCT CD	130 to 169 g/m²	kN/m	1.3	1 to 1.7
Caliper	170 to 219 g/m²	µm	250	220 to 280
RCT CD	170 to 219 g/m²	kN/m	1.6	1 to 2.4
Caliper	220 to 299 g/m²	µm	320	290 to 360
RCT CD	220 to 299 g/m²	kN/m	2.5	1.3 to 3
Caliper	300+ g/m²	µm	410	380 to 450
RCT CD	300+ g/m²	kN/m	3.5	2.7 to 3.8

Newsprint

40 to 52 g/m²

Property	Applies to	Unit	Typical	Market range
Brightness (ISO)	All weights	%	58	54 to 65
Moisture	All weights	%	8	7 to 9.5
Opacity	All weights	%	94	90 to 97
PPS roughness, top side	All weights	µm	3.4	2.5 to 4.5
Tear index CD	All weights	mN·m²/g	5.6	4.5 to 7
Tensile index CD	All weights	N·m/g	18	12 to 22
Tensile index MD	All weights	N·m/g	51	38 to 60
Caliper	40 to 59 g/m²	µm	70	50 to 85

Extrusion Coated Foodservice Board

100 to 350 g/m²

Supplied on request. Food-contact compliance documentation is agreed per order.

This grade is supplied on request. Tell us the job and we will come back with a proposal.

Folding Boxboard GC1

On request

190 to 370 g/m²

Property	Applies to	Unit	Typical	Market range
Brightness (ISO)	All weights	%	88	85 to 92
Cobb 60 s, top side	All weights	g/m²	46	30 to 55
Gloss	All weights	%	46	35 to 60
Moisture	All weights	%	7.5	6.5 to 8.4
PPS roughness, top side	All weights	µm	1	0.9 to 1
Scott Bond	All weights	J/m²	140	130 to 150
Bending stiffness CD	170 to 219 g/m²	mN·m	3.8	1.7 to 4.8
Bending stiffness MD	170 to 219 g/m²	mN·m	7.4	3.2 to 11
Caliper	170 to 219 g/m²	µm	290	230 to 310
Bending stiffness CD	220 to 299 g/m²	mN·m	7.9	4 to 9.8
Bending stiffness MD	220 to 299 g/m²	mN·m	16	7.7 to 23
Caliper	220 to 299 g/m²	µm	370	330 to 440
Bending stiffness CD	300+ g/m²	mN·m	16	10 to 26
Bending stiffness MD	300+ g/m²	mN·m	30	20 to 57
Caliper	300+ g/m²	µm	530	480 to 570

Supplied on request. Tell us the job. If no mill runs it yet, we take one to your specification: our fiber, our chemistry, qualification runs on site.

Folding Boxboard GC2

On request

200 to 400 g/m²

Property	Applies to	Unit	Typical	Market range
Brightness (ISO)	All weights	%	86	85 to 88
Cobb 60 s, top side	All weights	g/m²	35	25 to 55
Gloss	All weights	%	48	35 to 60
Moisture	All weights	%	8	6.5 to 9
PPS roughness, top side	All weights	µm	1.2	0.8 to 1.7
Scott Bond	All weights	J/m²	140	100 to 220
Bending stiffness CD	170 to 219 g/m²	mN·m	3.8	3.7 to 5.4
Bending stiffness MD	170 to 219 g/m²	mN·m	7.8	7.7 to 11
Caliper	170 to 219 g/m²	µm	340	330 to 390
Bending stiffness CD	220 to 299 g/m²	mN·m	7	6.7 to 11
Bending stiffness MD	220 to 299 g/m²	mN·m	16	15 to 21
Caliper	220 to 299 g/m²	µm	420	390 to 480
Bending stiffness CD	300+ g/m²	mN·m	16	15 to 21
Bending stiffness MD	300+ g/m²	mN·m	37	36 to 41
Caliper	300+ g/m²	µm	590	560 to 700

Supplied on request. Tell us the job. If no mill runs it yet, we take one to your specification: our fiber, our chemistry, qualification runs on site.

Uncoated Woodfree Paper

On request

30 to 263 g/m²

Property	Applies to	Unit	Typical	Market range
Bendtsen roughness, top side	All weights	ml/min	180	80 to 300
Brightness (ISO)	All weights	%	90	82 to 95
Caliper	under 40 g/m²	µm	42	36 to 50
Cobb 60 s, top side	All weights	g/m²	26	20 to 32
Moisture	All weights	%	4.8	4.2 to 6.2
Opacity	All weights	%	94	85 to 98
Caliper	40 to 59 g/m²	µm	62	52 to 72
Caliper	60 to 79 g/m²	µm	96	84 to 110
Caliper	80 to 99 g/m²	µm	110	100 to 130
Caliper	100 to 129 g/m²	µm	140	120 to 150
Caliper	130 to 169 g/m²	µm	180	160 to 210
Caliper	170 to 219 g/m²	µm	240	210 to 270
Caliper	220 to 299 g/m²	µm	320	280 to 370
Caliper	300+ g/m²	µm	420	370 to 500

Supplied on request. Tell us the job. If no mill runs it yet, we take one to your specification: our fiber, our chemistry, qualification runs on site.

Electrical Insulating Kraft Paper

32 to 110 g/m²

Supplied on request. Dielectric and other electrical properties are agreed per order against your standard.

This grade is supplied on request. Tell us the job and we will come back with a proposal.

Medical Grade Sterile Barrier Kraft Paper

On request

60 to 70 g/m²

Property	Applies to	Unit	Typical	Market range
Bendtsen roughness, top side	All weights	ml/min	150	110 to 220
Burst index	All weights	kPa·m²/g	4.8	4 to 5.5
Cobb 60 s, top side	All weights	g/m²	19	14 to 25
Moisture	All weights	%	6.5	5 to 8
Porosity (Gurley)	All weights	s	28	15 to 45
Tear index CD	All weights	mN·m²/g	9	8.9 to 11
Tear index MD	All weights	mN·m²/g	8.2	7 to 10
Tensile index CD	All weights	N·m/g	60	33 to 64
Tensile index MD	All weights	N·m/g	110	58 to 120
Wet tensile MD	60 to 79 g/m²	kN/m	1.2	0.9 to 1.6

Supplied on request. Compliance and technical documentation is agreed per order against your standard.

Step 4. Your order request

Your tuned specification travels with this form. We reply to every order request.

Leave this field empty:

Company *

Your name *

Email *

Country *

What will this paper become?

Volume

Destination port

Preferred Incoterm

Roll width (optional)

Core diameter

Food-contact compliance

Your tuned specification (auto-filled from your choices)

Anything else we should know?

Send your request and we will come back with price and terms; your order is confirmed in writing. Valle Kraft, Inc. is seller of record on every order. Your details are used only to respond to this request and are never sold. Privacy policy.

Design your paper. See what it takes to make it.

Typical values by grade

MG and MF kraft

Sack kraft

Containerboard

Newsprint and print

Board

Fine paper

Specialty

Machine Finished (MF) Bleached Kraft Paper

Machine Glazed (MG) Bleached Kraft Paper

Machine Glazed (MG) Unbleached Kraft Paper

Extensible Sack Kraft Paper

Semi-Extensible Sack Kraft Paper

Standard Sack Kraft Paper

Corrugating Medium (Fluting)

Kraftliner

Testliner

Newsprint

Extrusion Coated Foodservice Board

Folding Boxboard GC1

Folding Boxboard GC2

Uncoated Woodfree Paper

Electrical Insulating Kraft Paper

Medical Grade Sterile Barrier Kraft Paper

Step 3. Typical market specification for this grade

Step 4. Your order request