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Price Range:£23.14
Price £23.14
In stock

7900 sianet - the powerful net-backed abrasive from SIA Abrasives

SIA 7900 sianet discs are perfect for full-surface dust extraction sanding of metal, paint, wood and primers. It has been developed to help workshops achieve speedy high removal rate without clogging. The reliable, controlled cut results in a very efficient and productive finish. With a high tear resistance due to its sturdy net backing, SIA 7900 sianet gives amazing results, ensuring even wear and long life in a variety of applications.

7900 sianet 150mm Discs combine the highest performance and a lengthier lifecycle than conventional abrasives, making it an economical solution. It has been developed for dry sanding by machine or by hand, its true dust-free sanding features end in a cleaner work atmosphere, as well as a better surface finish.

SIA 7900 sianet is ideal for the sanding off coatings and impurities. keying of paints, lacquers, body filler, primer filler and plastics, keying primers and fine sanding of surfaces and edges. It can also be used for the intermediate sanding of lacquers, preparation for polishing on high-gloss surfaces and also fine sanding of solid wood, veneers, solid surface materials, priming foil, plaster and plasterboard.

SIA 7900 sianet is suitable for Automotive Refinishing, Construction, Decoration, Wood Processing, Metal Processing, Composites Processing, Do It Yourself, Marine Industry and Vehicle Manufacturing.


  • Long Lasting
  • Full-surface dust extraction
  • High removal rate without clogging
  • Very efficient and productive
  • High tear resistance, thanks to sturdy net backing

Technical Information

Brand SIA Abrasives
Diameter Ø150mm

Acrylic lacquer, Old lacquer, Primer filler, Primer coat, Hardwood, Resinous wood, Plaster, Plasterboard, Priming foil, HDF board

Bonding Agent Knitted fabric
Grain Blue-fired aluminium oxide/white aluminium oxide
Coating Closed
Backing PA net
MPN 6397.0967.0080, 6397.0967.0120, 6397.0967.0180, 6397.0967.0240, 6397.0967.0320, 6397.0967.0400, 



Here at AllFinishes we take health and safety seriously and recommend you use the correct protection for the job. Disregarding safety equipment can be damaging and result in long term health conditions. Please check out our Moldex range for high quality respirators and hearing protection.


SIA 7900 sianet 150mm discs are suitable for all types of applications. For a list of the types of machinery they can be used on, please see below.

Grit Type From To Description
Coarse 40 80 Coarse grit sandpaper is a good choice for rough sanding and removing stock quickly, such as sanding the edge of a sticking door with a belt sander.
Medium 100 150 Medium grit sandpaper makes a good starting point for most projects, from sanding unfinished wood to removing old varnish.
Fine 180 240 Finer grit sandpaper is great for removing the scratches left by coarser grits on unfinished wood and for lightly sanding between coats of paint.
Very Fine 320 600 Very fine grit sandpaper is used for light sanding between coats of finish and to sand metal and other hard surfaces.
Polishing 1000 3000 Ultra fine grit is used in onjuction with polishing creams to create high gloss paint and lacquer finishes.


SIA 7900 sianet 150mm discs can be used on the following materials:

  • Softwood
  • Hardwood
  • Resinous wood
  • Water-based varnish
  • Polyester lacquer
  • PU lacquer
  • NC lacquer
  • UV lacquer
  • Acrylic lacquer
  • Solid surface material
  • Old paint
  • Old lacquer
  • Primer filler
  • Primer coat
  • Bodyfiller
  • Plastics
  • Mineral fibreboard
  • Plaster
  • Plasterboard


Please ensure you dispose of in the correct waste disposal

Compatible Machinery

AEG Models

EXE 460 - 150, ROS 150 E, EX 150 E

Atlas Models

ROS 150 E, LST 21 R625, LST 21, R650, LST 22 R625, LST 22 R650, LST31 H90-15, LST31 S90-15, LST32 H090-15, LST32, S090-15, LST 22 R625-9, G2438-6.5N Pro, G2438-6.5I Pro, G2438-6.3I Pro, G2438-6.10I Pro, G2438-6.5C Pro, G2438-6.3N Pro, G2438-6.3C Pro, G2438-6.10N Pro, G2438-6.10C, Pro, G2438-10Velcro6 Pro, LST 22, R650-9

Bosch Models

PEX 15 AE, GEX 150 AE, GEX 150, AC/E, GEX 150 Turbo, PEX 420 AE

DeWalt Models

ES 56 E, ES 56 EK, DW443, D 26410

Fein Models

X 1107 VE

Felisatti Models

TP 521/AS, TP 521/E, TP 522 AS/CE, RGF 150/600 E

Flex Models

X 1107 VE, XS 1107 VE

Hilti Models

WFE 150, WFE 380, WFE 450 E

Hitachi Models

SAY 150 A

Kres Models

900 MPS, 900 HEX /2

Mafel Models

UT 150 E, UX 150 E

Metabo Models

SX E 425 XL, SX E 450 Duo, SXE 450 TURBOTEC,

Milwaukee Models

ROS 150 E, PRX 150 E

Pro Tool Models

ESP 150 E

Stayer Models

RO 150 E, LRT 150

Wegoma Models

RX 91 C, RT188N, RTE46L, RTE146L

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