At Sealtec Hydraulics, we supply a wide range of highly specialised local and imported hydraulic seals as well as accessories to a wide range of facilities, plants, sites, and more. We stock and develop hydraulic fluid control solutions that meet the exact needs of our clients at every turn.

Our offers work towards a more streamlined, efficient, and cost-effective facility by limiting leakages, downtime, losses, or damage, thanks to the exceptional quality of our available seals and accessories.

In addition to this, we make sourcing the parts you need simple with our counter sales department which ensures that parts and accessories are available at a moment’s notice.

Where quality, performance, and affordability are of equal importance, our offers on hydraulic seals ensures client satisfaction.


We offer a comprehensive range of different hydraulic seals and related accessories for facilities of all types. We play a part in designing, manufacturing, and distributing industrial and commercial sealing solutions that are characterised by superior quality that always meets the expectations of our clients.

Hydraulic Seals

We offer a complete range of specialised hydraulic seals that include the following solutions

  • Double acting seals
  • Single acting seals
  • Oil seals
  • O-rings
  • Poly-U seals
  • Rubber-U seals
  • Ext.
Reservoir Accessories We also supply specialised accessories for reservoirs to ensure efficient and consistent operations. These include the following solutions:

  • Metallic and non-metallic breathers and filler breathers
  • Diffusers
  • Fluid levels/temperature gauge
  • Triceptor desiccant breathers
  • Suction strainers
  • Top tank filters
  • Tank immersed filters
  • Bell housing
  • Drive coupling

Temperature range of Standard O-ring compounds

Key Temperature range
A Polyacrylate 0 to + 250/300 – 17 to + 177
B Butyl – 75 to + 250/300 – 59 to + 120/150
C Neoprene (Chloroprene) – 45 to + 300 – 43 to + 149
E Ethylene Propylene – 70 to + 250 / 400 – 57 to + 100 / 205
L Fluorosilicone – 100 to + 350 / 400 – 73 to + 177 / 205
N Nitrile – 65 to + 250 – 34 to + 121
S Silicone – 65 to + 450 – 54 to + 232
V Fluorocarbon – 15 to + 400/500 – 26 to + 205 / 260

Comparison of properties of commonly used elastomers

Table scrolls on mobile devices.

Component Number Prefix N
Nitrate or Buna
Ethylene Propylene
Ozone Resistance P GE E GE E E E E
Weather Resistance F E E GE E E E E
Heat Resistance G G E GE E E E E
Chemical Resistance FG FG E E E P GE E
Oil Resistance E FG P P E E PG G
Impermeability G G G E G E P P
Cold Resistance G FG GE G FP P E GE
Tear Resistance FG FG GE G F FG P P
Abrasion Resistance G G GE FG G G P P
Set Resistance GE F GE FG GE F GE GE
Dynamic Properties GE F GE F GE F P P
Acid Resistance F FG G G E P FG FG
Tensile Strength GE GE GE G GE F P F
Electrical Properties F F G G F F E E
Water/Steam Resistance FG F E G FG P F F
Flame Resistance P G P P E P F G


If you would like to know more about our offers on high quality hydraulic seals for sale, be sure to get into contact with a representative from Sealtec Hydraulics today, or feel free to continue browsing our website for additional information on our offers.



+27 16 428 5190/1/2/3/4/5/6/7


(+27) 16 428 4197 (GENERAL FAX)
(+27) 16 428 5040 (SALES FAX)



3C Houtkop Road, Duncanville Vereeniging, Gauteng, South Africa GPS: 26 38'56"S 27 56'21"E


Monday to Thursday - 8:00AM till 16:30PM
Fridays - 8:00AM till 14:00PM
Public Holidays Closed

Please note for an urgent breakdown we are available 24/7

Barry Jacobs Senior (Managing Director)

082 478 6959

Barry Jacobs Junior (Sales Director)

083 654 5195

Jacque Jacobs (Technical Director)

082 825 6174

Fanie Campher (Sales Representative)

082 354 1703

Meiring Van Heerden (Sales Representative)

083 375 7338

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