For a natural look

Natural look with a sense of authenticity

MetsäBoard Natural FBB

MetsäBoard Natural FBB is an uncoated folding boxboard, available in a basis weight range of 175-325 g/m², suitable for offset and flexo printing.

MetsäBoard Natural FBB is perfect for packaging requiring a more natural look and feel. MetsäBoard Natural FBB is available uncoated or with an extrusion or dispersion coating for additional barrier properties, for example, in food service packaging. It is hard-sized to prevent edge penetration by moisture.

Combined safety and sustainability

Lightweight and sturdy, MetsäBoard Natural FBB provides more yield per tonne, making it a cost-effective option with a lower environmental impact. It uses raw materials that are traceable, safe and approved for food contact. MetsäBoard Natural FBB is also suitable for packaging applications that require OBA-free board.

MetsäBoard Natural FBB is made from fresh fibres, sourced from sustainably managed northern forests. All of Metsä Board’s products are manufactured under the highest environmental and safety standards, and hold PEFC^TM and FSC® chain of custody certification.

METSÄBOARD NATURAL FBB IS RECOMMENDED FOR:

food and beverage packaging
takeaway food
paper plates and folded trays

Product specifications

Specification language

Features

Product name	MetsäBoard Natural FBB
Product description	Folding boxboard, uncoated, hard sized, OBA free
End use	Beautycare, Healthcare, Foods, Beverages, Frozen food, Paper plates, Folded trays, Fast food applications
Printing method	Offset, Flexo
Food contact	EU Regulation (EC) No 1935/2004, GB9685, GB4806.8, USFDA21CFR§176.170, USFDA21CFR§176.180
Mill	Metsä Board Husum
Product type	Folding boxboards
Paper profile	MetsäBoard Natural FBB (pdf)

*Please contact Metsä Board for details of country-specific restrictions and/or limitations.

Open specification PDF

Technical informationSelect unit :ISOUSDIN

Grammage g/m²	175	190	200	210	225	235	245	260	270	295	325
Bending stiffness CD mNm	3.8	4.6	5.4	6.6	8.1	9.0	10.0	11.6	13.0	16.0	19.0
Bending stiffness MD mNm	7.8	9.7	11.0	13.5	16.5	18.4	20.2	23.3	26.3	32.5	38.0
Thickness μm	310	335	360	385	415	435	455	485	505	555	610
Moisture content %	7.0	7.0	7.0	7.2	7.5	7.7	7.7	7.8	8.1	8.3	8.5
Brightness top %	80.5	80.5	80.5	80.5	80.5	80.5	80.5	80.5	80.5	80.5	80.5
Water absorption top g/m²	≤40	≤40	≤40	≤40	≤40	≤40	≤40	≤40	≤40	≤40	≤40
Water absorption middle, back g/m²	≤50	≤50	≤50	≤50	≤50	≤50	≤50	≤50	≤50	≤50	≤50
Off-flavour (Robinson test)	<1	<1	<1	<1	<1	<1	<1	<1	<1	<1	<1

Stretch CD,%	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0
Roughness μm	250	250	300	300	300	300	350	400

Roughness ml/min	250	250	300	300	300	300	350	400

Grammage g/m²
Bending stiffness CD mNm	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
Bending stiffness CD mNm	2.0	2.7	3.7	4.8	6.2	8.1	10.2	14.5
Bending stiffness MD mNm	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
Bending stiffness MD mNm	5.0	6.8	9.3	12.0	15.5	20.3	25.5	36.3
Brightness top %	80	80	80	80	80	80	80	80
Moisture content %	8.0	8.0	8.0	8.5	8.5	9.0	9.0	9.0
Off-flavour (Robinson test)	<1	<1	<1	<1	<1	<1	<1	<1
Roughness ml/min	250	250	300	300	300	300	350	400
Roughness ml/min	250	250	300	300	300	300	350	400
Stretch CD %	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0
Thickness mm	0.250	0.275	0.300	0.330	0.370	0.410	0.450	0.520
Water absorption middle, back g/m²	≤50	≤50	≤50	≤50	≤50	≤50	≤50	≤50
Water absorption top g/m²	≤40	≤40	≤40	≤40	≤40	≤40	≤40	≤40

Folding boxboard range

MetsäBoard Classic FBB
MetsäBoard Classic FBB CX
MetsäBoard Natural FBB - NEW
MetsäBoard Prime FBB
MetsäBoard Prime FBB Bright
MetsäBoard Prime FBB Bright – NEW
MetsäBoard Prime FBB CX
MetsäBoard Prime FBB CXB
MetsäBoard Pro FBB
MetsäBoard Pro FBB Bright
MetsäBoard Pro FBB Bright – NEW
MetsäBoard Pro FBB CX
MetsäBoard Pro FBB OBAfree – NEW

Grammage g/m²	175	190	200	210	225	235	245	260	270	295	325
Basis weight lb/3000 sf 24x36/500	107	117	123	129	138	144	150	160	166	181	200
Thickness mm	0.310	0.335	0.360	0.385	0.415	0.435	0.455	0.485	0.505	0.555	0.610
Caliper pt	12.2	13.2	14.2	15.2	16.3	17.1	17.9	19.1	19.9	21.9	24.0
Bending stiffness CD mNm	3.8	4.6	5.4	6.6	8.1	9.0	10.0	11.6	13.0	16.0	19.0
Bending stiffness MD mNm	7.8	9.7	11.0	13.5	16.5	18.4	20.2	23.3	26.3	32.5	38.0
Bending stiffness CD gf∙cm	39	47	55	67	83	92	102	118	133	163	194
Bending stiffness MD gf∙cm	80	99	112	138	168	188	206	238	268	331	387
Moisture content %	7.0	7.0	7.0	7.2	7.5	7.7	7.7	7.8	8.1	8.3	8.5
Brightness top %	80.5	80.5	80.5	80.5	80.5	80.5	80.5	80.5	80.5	80.5	80.5
Water absorption top g/m²	≤40	≤40	≤40	≤40	≤40	≤40	≤40	≤40	≤40	≤40	≤40
Water absorption middle, back g/m²	≤50	≤50	≤50	≤50	≤50	≤50	≤50	≤50	≤50	≤50	≤50
Off-flavour (Robinson test)	<1	<1	<1	<1	<1	<1	<1	<1	<1	<1	<1

MetsäBoard Natural FBB

Combined safety and sustainability

METSÄBOARD NATURAL FBB IS RECOMMENDED FOR:

Product specifications

Folding boxboard range

MetsäBoard Classic FBB

MetsäBoard Classic FBB CX

MetsäBoard Natural FBB - NEW

MetsäBoard Prime FBB

MetsäBoard Prime FBB Bright

MetsäBoard Prime FBB Bright – NEW

MetsäBoard Prime FBB CX

MetsäBoard Prime FBB CXB

MetsäBoard Pro FBB

MetsäBoard Pro FBB Bright

MetsäBoard Pro FBB Bright – NEW

MetsäBoard Pro FBB CX

MetsäBoard Pro FBB OBAfree – NEW