One easy to use filler for all plastics

Most plastic fillers work on rigid plastics or semi-rigid plastics, but do not give very good adhesion to either of these surfaces. Alsiplast can be used on rigid, semi-rigid and even flexible plastics with excellent adhesion on all 3 surfaces. It is easy to use and gives maximum flexibility with superior results. It is strong, versatile and will not shrink.


  • Filler can be used on either Rigid, Semi Rigid or Flexible Plastics
  • This unique filler provides maximum flexibility
  • Strong and versatile
  • Will not shrink
  • Will not absorb moisture
  • Provides superior results
  • Easy to sand
  • Will not clog up the sandpaper
  • Provides a quick finish to the job
  • Saves a lot of time and labour

Application instructions for Plastic Filler


Car bumpers, and plastics in interiors of cars, boats, RV’s, computers,
photocopying machines, etc. that have been damaged or cracked, children’s toys, including industrial applications such as PVC windows, doors, fences, plastic furniture, garden furniture etc. and many other applications

Application Procedure:
Make sure area to be repaired is clean, dry and rough. Make a small V incision
on area to be repaired so as to give the area being repaired some depth and
volume so Alsiplast can bond easily. For areas that are cracked squeeze out
some Alsifort before applying Alsiplast from tube and apply between cracks and press together tight for about 30 minutes
Mix contents of Alsiplast can thoroughly. Take out a little Alsiplast from can and place it on your clean work mat (clean smooth flat metal surface or other clean flat mixing surface).
Add approximately 2 % to 3 % hardener to the contents outside the can and
mix thoroughly. Apply in layers over area that is to be repaired. If you find
that it is taking too long for Alsiplast to harden you can add some more
hardener the next time as this will speed up the hardening process. Normally
Alsiplast takes 40 to 45 minutes to harden after which it can be sanded.

Alsiplast starts to harden very quickly (3 to 4 minutes) so mix small
quantities at a time.

Do not heat bumpers before or after applying Alsiplast and this will cause it
to become brittle and cause spider webs. Just clean and sand thoroughly before applying Alsiplast. Do not wipe clean Bumpers with lacquer thinner before applying Alsiplast etc., as this will cause poor adhesion of Alsiplast to the substrate.

Please do not insert mixing paddle or stick into Alsiplast can after you have
used it to mix it with the hardener. This will contaminate and harden the
contents in the can and make it unusable for future use.

Technical information for ALSIPLAST

Q: Is Alsiplast waterproof ?
A: Yes Alsiplast is waterproof.

Q: Can I repair flexible plastics such as bumpers etc with Alsiplast ?
A: Yes Alsiplast is used to repair all kinds of plastics, rigid, flexible, and semi-rigid plastics.

Q: Can I repair plastics that are broken in 2 with Alsiplast ?
A: No, You need to repair 2 broken pieces the traditional way by gluing or fusing the plastics together. Alsplast is good for repairing cracks, scratches, fillings and gouges etc.

Q: Is Alsiplast hard to sand ?
A: Alsiplast is easy to sand. Once you mix Alsiplast with the activator it will start hardening in 2 minutes and you can start sanding the surface in about 20 minutes.

Q: Is Alsiplast flexible?
A: Yes Alsiplast is flexible.

Q: Can I add a light polyester filler over Alsiplast?
A: Yes you can, however if you apply Alsiplast correctly you don’t need another filler.

Q: How long does it take for Alsiplast to set before I can sand it down?
A: It takes Alsiplast about 40 to 45 minutes to set.

Q: Can I prime directly over Alsiplast or do I have to use another polyester putty over Alsiplast before priming and painting my surface?
A: Yes, you can prime and paint directly over Alsiplast.

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