Feltfon Slash

MITRED ACOUSTIC FELT RIBS for walls and ceilings

Elevate your spaces with boundless design potential and craft your very own custom-shaped wall absorbers to suit your unique style. Feltfon© Slash, with mitred in-line connections, uses Feltfon© Linear Rib as a base. This enables you to mix colours and form patterns on your wall. The joint angle matches the design of Feltfon© Intersections, making them a seamless combination for endless design possibilities. The Capax Quick-Up system ensures robust and user-friendly installations for walls and ceilings. A system designed to be resistant to water and approved for use in wet rooms. Customize your look by varying width, depth, colour, spacing width, or add wooden in-fill strips. Feltfon© Slash is fire resistant without the need for impregnations.

TYPE / SOLUTION

Feltfon Vector

APPLICATION

Ceilings, Wall, Wet rooms

Fire Class

B-s1,d0

Acoustic class

A, B, C, D

CONTACT

Material

Gustafs Acoustex© 9 mm represents the next generation of textiles, crafted from a minimum of 50% post-consumer recycled material. This sustainable solution showcases our commitment to reducing environmental impact while maintaining exceptional quality.

Design

Elevate spaces with limitless design possibilities. Feltfon Vector Slash allows you to create stunning rib designs. With a wide selection of colours, you have a wide range of options to bring your vision to life.

A safe choice

Gustafs Feltfon Vector System is specifically designed for public spaces, prioritizing safety and peace of mind. With its B-s1,d0 classification, this system makes little to no contribution to fire, ensuring a secure environment for all. Based on the Feltfon Linear rib and installed on the same Capax system.

01 CREATE FREELY +

01 CREATE FREELY

With Feltfon Slash, 45 degree angled cut, you can create stunning patterns. It is also possible to create bespoke patterns with different angles. Please reach out to us with your design for a customized quote.

02 COMBINATIONS +

02 COMBINATIONS

All Feltfon Vector and Linear are installed using the same installation system so you can combine and create freely.

03 DIMENSIONS +

03 DIMENSIONS

A wide range of dimensions and patterns allows you to design without having to re-invent the wheel.

Acoustics

9 mm of felt thickness means 9 mm of air permeable material. Together with the hollow core, Feltfon Slash is a super absorber up to class A.

Mix and match

1. Decide upon your design.
2. Choose the colours for your ribs.
3. Decide on a colour for the background felt or choose to leave the spacings open.

Wet rooms

Feltfon can be used in humid environments such as indoor gyms, pool areas and spas. These are areas where you often want to eliminate disturbing sounds.

COMBINE WITH INTERSECTIONS

Feltfon Vector Slash and Intersections

Feltfon Intersections allows you to create visually striking effects by using straight lines that cross over each other, resulting in a sleek and modern appearance.

Feltfon Vector Intersections rises 10 mm higher, seamlessly embracing the underlying Feltfon Slash rib. This dynamic addition creates an enchanting break in the linear pattern, infusing depth into your wall.

The angle of Feltfon Intersections matches the joint angle of Feltfon Slash seamlessly.

Feltfon Intersections

Inspiration

PATTERNS

Check out our patterns

More Feltfon products

FELTFON LINEAR RIB

FELTFON INTERSECTIONS

FELTFON CURVES

FELTFON BLOX

Break away from the linear pattern and unleash your creativity

Within the Feltfon Vector product group, you’ll find several design patterns: Layers, Intersections, Curves, Slash, Pixel and DNA. Each pattern offers unique and distinctive possibilities to create captivating and dynamic wall designs. Create fresh and exciting patterns or use them as an accessory to complement your Feltfon Linear Rib installation.

SLASH

Feltfon Vector – Slash

Feltfon Slash, inspired by Feltfon Linear, introduces diagonal rib connections. This enables you to mix colours and form patterns on your wall. The joint angle matches Feltfon Intersections, making them a seamless combination for endless design possibilities.

PATTERN B01.01 +

PATTERN B01.01

Feltfon Linear Rib & Slash in mixed rib widths and felt colours.

PATTERN B01.02 +

PATTERN B01.02

Pattern in Anthracite, Sand, Wet Sand and Dark Grey.

PATTERN L01.03 +

PATTERN L01.03

Pattern with three shades of grey.

PATTERN L01.04 +

PATTERN L01.04

Four colour pattern.

Turn our standards into something unique

Feltfon Vector is based on the Feltfon Linear Rib dimensions, with the intersecting rib being 10 mm higher. This subtle difference in height enhances the visual impact of your designs. By mixing dimensions and patterns freely, you can achieve an exciting and personal expression on your installation. The only limit is your creativity.

Dimensions

A wide range of dimensions and patterns allows you design without having to re-invent the wheel.

Spacing

Using the Gustafs Quick-Up Capax System we recommend spacings of 22 mm for Feltfon Slash. But 53 mm, 84 mm, 115 mm, 146 mm, 177 mm, 208 mm, etc is also available.

Wooden in-fill strips

The Gustafs wooden in-fill strips are designed to be placed within the spacing between the felt ribs. ↓

STANDARD DIMENSIONS

Feltfon Slash

RIB LENGTH: Max. 2400 mm
SPACING: 22 mm
SLASH ANGLE: 45°

DEPTH	WIDTH
	40 mm	71 mm	102 mm
40 mm	x	x	x
60 mm	x	x	x
80 mm	x	x	x
100 mm	x	x	x
120 mm	x	x	x

MODEL	WIDTH	TOTAL LENGTH
A	102 mm	2400 mm
B	71 mm	2400 mm
C	40 mm	2400 mm

DIMENSIONS

Customized rib dimensions

Length: 2400 mm
Minimum depth: 30 mm
Maximum depth: 555 mm in combination with 40 mm width
Minimum width: 40 mm in combination with depth 555 mm
Maximum width: 598 mm in combination with 275 mm depth

Possible* maximum dimensions (depth x width)

555×40 mm
540×71 mm
525×102 mm
510×133 mm
495×164 mm
480×195 mm
460×226 mm
445×257 mm
430×288 mm
415×319 mm
400 x 350 mm
385 x 381 mm
370 x 412 mm
355 x 443 mm
340 x 474 mm
325 x 505 mm
305 x 536 mm
290 x 567 mm
275 x 598 mm

* Please note that some of these dimensions might not be suitable for wall use, depending on the room design.

SPACING

Wooden in-fill strips

Wooden in-fill strips are available in all our veneers.

See our surfaces

Feltfon Acoustic Felt – Green Acoustics made from rPET

Gustafs Acoustex is a next generation textile crafted from a minimum of 50% recycled PET bottles. The bottles are chipped into flakes and combined with fresh PET material. This innovative process ensures optimal reprocessing of PET, making it an environmentally-friendly choice. Furthermore, Feltfon is a 100% recyclable solution, emphasizing its commitment to sustainability.

KNOWLEDGE HUB / COLOUR PALETTES

01 FELT COLOURS +

01 FELT COLOURS

Select from many standard felt colours and mix freely.

1. Anthracite, 2. Dark Grey, 3. Wool Grey, 4. Sand, 5. Wet sand, 6. Dirty Green 7. Old Clay, 8. Mocca, 9. Rose, 10. Jade, 0. White.

See all colours >>

02 STURDY & SOFT +

02 STURDY & SOFT

With a 9 mm thick felt with a high density of 2 kg/m², Feltfon ribs will survive on walls in all types of public spaces.

03 THE PERFECT LOOP +

03 THE PERFECT LOOP

Our Acoustex rPET felt material can be re-processed repeatedly. Feltfon ribs can be de- and re-mounted multiple times – for circular use.

Gustafs Feltfon acoustics

Design something new with acoustic absorption coefficients up to the highest possible class A. A sound investment for the right kind of echo.

KNOWLEDGE HUB / ACOUSTICS

Acoustic absorption Feltfon Ribs, 40 x 40 mm, total depth 50 mm

APPLICATION	SPACING	INSULATION	αw / NCR
Wall	22 mm	Acoustex 9 mm	0,55-D/ 0,80

Acoustic absorption Feltfon Ribs, 40 x 40 mm, total depth 95 mm

APPLICATION	SPACING	INSULATION	αw / NCR
Wall	22 mm	Acoustex 9 mm + 45 mm mineral wool	0,95-A/ 0,95

Acoustic absorption Feltfon Ribs, 40 x 40 mm, total depth 250 mm

APPLICATION	SPACING	INSULATION	αw / NCR
Ceiling	22 mm	Acoustex 9 mm + air void 201 mm	1,00-A / 0,95
Ceiling	22 mm	air void 211 mm	0,60-C / 0,65

Fire safety

Rest easy knowing that Feltfon is fire-safe without the need for impregnations, prioritizing safety without compromising style.

Reaction to fire – classifications Gustafs Feltfon

PRODUCT	REACTION TO FIRE
Feltfon Acoustex	B-s1,d0

A SAFE CHOICE +

A SAFE CHOICE

Gustafs Feltfon System is specifically designed for public spaces, prioritizing safety and peace of mind. With its fire classification, B-s1,d0, this system makes little to no contribution to fire, ensuring a secure environment for all.

With our low emission Acoustex, you can breathe out.
And everyone else can breathe in.

Free from fire-retardants, added formaldehyde or isocyanate binders, the Acoustex material in Feltfon guarantees extremely low TVOC levels.

KNOWLEDGE HUB / EMISSIONS

Feltfon complies with the following building certifications

	TVOC required	TVOC result	Formaldehyde required	Formaldehyde result
BREEAM	≤ 0,3 (mg/m³)	0,01 (mg/m³)	≤ 0,01 (mg/m³)	0,005 (mg/m³)
LEED none U.S.	≤ 1,0 (mg/m³)	0,01 (mg/m³)	< 0,06 (mg/m²h)	0,001 (mg/m²h)
BVB	< 0,2 (mg/m²h)	0,01 (mg/m²h)	< 0,05 (mg/m²h)	0,002 (mg/m²h)
M1	< 0,2 (mg/m²h)	0,01 (mg/m²h)	< 0,05 (mg/m²h)	0,001 (mg/m²h)
Blue Angel	≤ 0,3 (mg/m³)	0,01 (mg/m³)	≤ 0,06 (mg/m³)	0,005 (mg/m³)

More Building Certifications >>

Green Acoustics

Sustainability is a fundamental part of our core and our target with Feltfon was to create a sustainable product that could match the good environmental credentials of all our other products. Feltfon is made from recycled PET bottles and can be recycled multiple times. Feltfon is produced with 100% fossil free energy.

KNOWLEDGE HUB / SUSTAINABILITY

Details that make the difference

Linear Accessories are unique details to be combined with your wall or ceiling system. Our linear accessories complete your vision and simplifies complicated solutions.

F-Line – linear lighting for Feltfon Linear

Integral linear lighting solution for Gustafs Feltfon© Linear Ceiling System. The lamp housing snaps to the same carrier profile as the Feltfon© ribs. F-Line uses a modern micro prismatic dimming in combination with high-quality LED light sources.

F-Line Spot – spot lighting for Feltfon Linear

Integral spot lighting solution for Gustafs Feltfon© Linear Ceiling System. The lamp track snaps to the same carrier profile as the ribs. Comes with a modern micro prismatic dimming and high-quality LED light sources.

Insulation – Acoustex 9,0 – Sturdy acoustic felt for multiple use

Extremely form stable acoustic backing in a wide range of colours and with fire class B-s1,d0. Can be used as an individual sound absorber or integral as the acoustic insulation layer behind Gustafs Feltfon Linear System for walls or ceilings. Supplied in sheets in various formats. Contains minimum 50% recycled PET bottles and is approved by all international standards regarding indoor climate emissions. Thickness 9,0 mm.

Wooden in-fill strips for Feltfon Linear

Combine the wool look of Feltfon© with beautiful wooden in-fill strips. Available in the following dimensions (depth x width x length): 13 x 23 x 2400, 13 x 54 x 2400 and 13 x 85 x 2400 mm. The wooden in-fill strip leaves 10 mm of visible rib depth in combination with a 40 mm deep Feltfon© rib, 30 mm visible depth in combination with a 60 mm deep rib, etc. Choose from our palette of veneers.

Covers

Varying types of covers and windowsills are needed in almost any interior fitting project. Gustafs will perfectly match the correct specifications and needs for your project, as well as the surface and finish.

Plinths

Plinths are the definite finish of a rib installation, not only regarding a nice design but also concerning the protecting function, for example against wet floor cleaning. Contact us and we will fulfill the specifications of your project.

Installation Feltfon Vector

All Feltfon Vector, Feltfon Linear and Feltfon Blox are installed with the same Capax system which makes it easy to mix different models and create your own designs. The Capax Quick-Up installation system is available for both walls and ceilings. The Capax installation system for Feltfon guarantees reliability and a perfect visual result.

INSTALLATION

Easy to install

Capax is our unique aluminium profile installation system that delivers a concealed, reliable, quick, and cost saving installation. The Quick-Up system is user-friendly and available for walls and ceilings. No tools are needed to assemble the interlocking components. Both the wall and ceiling system are demountable, ideal when access to the ancillary systems is required.

WALL INSTALLATION FELTFON

CEILING INSTALLATION FELTFON

Avoid devalue engineering of your design

Gustafs has comprehensive, accredited test data for a wide variety of criteria such as fire, acoustics, emissions and many others. We tick all the boxes to comply your project with todays modern building standards. However, the following documents are not available for direct downloading. Please send a request or contact us or our country representatives for more information.

SEND REQUEST FOR CERTIFICATIONS

Available certifications for Feltfon Acoustex 9,0

Fire

Reaction to Fire: B-s1,d0

Acoustics

Configurations possible to achieve absorption class A, C or D. NRC: 0,60, 0,80, 0,95.

Environmental performance certification program for buildings

BREEAM
LEED
BVB
Svanen (Nordic Eco)
Sunda Hus

Emissions

Class E1 and M1. Approved for BREEAM International / LEED v4.1 / Svanen / Byggvarubedömningen / Sunda Hus / Blue Angel / AgBB / Belgian VOC / French VOC.

Declaration of Performance

DoP: Yes

FSC®

The wooden in-fill strips are available with FSC® (Forest Stewardship Council®) certified wood.
Gustafs FSC® certificate code is: SAI-COC-010919

And more

Added Urea formaldehyde: No
Isocyanate binders: No
Life Time: > 50 years
Recycled content: > 50% Post Consumer

Feltfon Slash

Material

Design

A safe choice

Acoustics

Mix and match

Wet rooms

Feltfon Vector Slash and Intersections

Inspiration

More Feltfon products

Break away from the linear pattern and unleash your creativity

Feltfon Vector – Slash

Turn our standards into something unique

Dimensions

Spacing

Wooden in-fill strips

Feltfon Slash

Customized rib dimensions

Possible* maximum dimensions (depth x width)

Wooden in-fill strips

Feltfon Acoustic Felt – Green Acoustics made from rPET

Gustafs Feltfon acoustics

Acoustic absorption Feltfon Ribs, 40 x 40 mm, total depth 50 mm

Acoustic absorption Feltfon Ribs, 40 x 40 mm, total depth 95 mm

Acoustic absorption Feltfon Ribs, 40 x 40 mm, total depth 250 mm

Fire safety

Reaction to fire – classifications Gustafs Feltfon

With our low emission Acoustex, you can breathe out. And everyone else can breathe in.

Feltfon complies with the following building certifications

Green Acoustics

Details that make the difference

F-Line – linear lighting for Feltfon Linear

F-Line Spot – spot lighting for Feltfon Linear

Insulation – Acoustex 9,0 – Sturdy acoustic felt for multiple use

Wooden in-fill strips for Feltfon Linear

Covers

Plinths

Installation Feltfon Vector

Easy to install

Avoid devalue engineering of your design

Available certifications for Feltfon Acoustex 9,0

Fire

Acoustics

Environmental performance certification program for buildings

Emissions

Declaration of Performance

FSC®

And more

Downloads

CAD-FILES

With our low emission Acoustex, you can breathe out.
And everyone else can breathe in.