Dekalin DEKASEAL 8936 light grey 310 ml cartridge - plastic PIB sealant for roof lights, hatches and trims on motorhomes, dab-off excess
- Non-curing, permanently plastic polyisobutylene sealant for windows, roof hatches, doors and trims. Excess is removed by dabbing, 310 ml cartridge.
Dekalin DEKASEAL 8936 is a high-quality, permanently tacky, non-curing sealant based on polyisobutylene (PIB) that stays plastic for many years. It is the classic compound for sealing roof lights, side windows, service doors, entrance doors and trims on motorhomes and caravans, all parts that may have to be removed later. After a short flash-off, squeezed-out excess can simply be dabbed off with the compound itself, without smearing the paint. Colour light grey (RAL 7035).
Key features
- Does not cure, stays plastic, so parts can be removed later
- Excess is dabbed off, leaving no visible joint edge
- Very low water vapour permeability (0.1-0.2 g/day/m²)
- Resistant from -30 to +100 °C, frost resistant in the pack
- Odourless after flash-off, does not attack paint
Use in motorhomes and caravans
In motorhomes and caravans DEKASEAL 8936 is applied under the flanges and mounting frames of roof lights, side windows, service doors and doors, under keder, edge and decorative trims, and for sealing screwed joints, rear lights, headlights and reversing cameras. It is suitable between sheet metal, glass, GRP, wood and other materials, and for rubber-to-glass joints.
As the compound does not harden and cannot be painted, use it where the joint is hidden under the part or the excess will be dabbed off. For visible joints that should skin and be paintable, choose DEKASEAL 1512; for bonding parts, choose a DEKASYL compound.
How to use, step by step
- Remove the old seal, clean and degrease the surface and the flange of the part with DEKACLEAN Ultra.
- Cut the cartridge tip and trim the nozzle to the required bead size. The compound can be applied with a manual gun or an air gun at 2-3 bar.
- Apply a continuous bead to the flange or frame without gaps, especially in the corners and around screw holes.
- Fit the part and tighten it evenly so that the compound squeezes out all round.
- After a short flash-off, remove the excess by dabbing it with a ball of the same compound. Residues can be removed with white spirit.
What you get
- 1 x Dekalin DEKASEAL 8936, colour light grey, 310 ml cartridge
How to choose the right product
For sealing windows, hatches, trims and overlaps the manufacturer offers several plastic compounds and tapes that differ in form and behaviour after application. The highlighted row is the product on this page.
| Product | Type | After application | Paintable | Typical use |
|---|---|---|---|---|
| DEKASEAL 8936 | PIB compound in cartridge or foil bag | stays plastic and slightly tacky | no | under flanges of windows, hatches, doors and trims that may be removed |
| DEKASEAL 1512 | butyl compound in cartridge | forms a dry skin | yes | visible joints, roof hatches, overlaps, panel vans |
| DEKAPLAST 7303 | butyl tape or round cord | stays plastic | no | between mechanically fastened parts, roof lights, trims |
| DEKASEAL Butyl Tape | profiled butyl tape 3 m | permanently elastic | no | keder strips, overlaps, brackets, quick repairs on the road |
Safety at work
- Labelling according to the safety data sheet (version of 18.04.2024): Warning. H315: Causes skin irritation. H412: Harmful to aquatic life with long lasting effects. EUH212: Warning! Hazardous respirable dust may be formed when used. Do not breathe dust.
- Read the label and the safety data sheet before use. Work in a well-ventilated area, wear protective gloves and, when working overhead, safety glasses.
- Keep out of reach of children. Dispose of residues and packaging in line with local regulations; do not pour into drains.
Storage and shelf life
Store at +15 to +25 °C in the tightly closed pack. Under these conditions the compound keeps for at least 2 years. The product is frost resistant, but bring it to room temperature before use.
Matching products
- DEKASEAL 8936 anthracite 310 ml - related sealing product
- DEKASEAL 8936 black 310 ml - related sealing product
- DEKASEAL 8936 light grey 560 ml - related sealing product
- DEKASEAL 8936 anthracite 560 ml - related sealing product
- DEKASEAL 8936 black 560 ml - related sealing product
- DEKASEAL 1512 white 310 ml - related sealing product
- DEKASEAL 1512 black 310 ml - related sealing product
Technical data
| Parameter | Value |
|---|---|
| Product | Dekalin DEKASEAL 8936 |
| Base | polyisobutylene (PIB), non-curing |
| Colour | light grey (RAL 7035) |
| Content | 310 ml |
| Packaging | cartridge |
| Open time | approx. 3 h |
| Temperature resistance | -30 to +100 °C |
| Water vapour permeability | 0.1-0.2 g/day/m² |
| Air gun pressure | 2-3 bar |
| Paintable | no |
| Removing residues | white spirit |
| EAN | 4046085625031 |
Frequently asked questions
Does DEKASEAL 8936 dry out?
No. The compound does not cure and stays slightly tacky and plastic for years, so the seal moves with the vehicle and the part can be removed later.
What does dab-off mean?
Squeezed-out excess is picked up by touching it several times with a ball of the same compound. The compound sticks to itself rather than to the paint, so no smears remain.
Can I paint the joint?
No, DEKASEAL 8936 cannot be painted. For joints that are to be painted the manufacturer specifies DEKASEAL 1512.
About Dekalin
Dekalin is a German brand of adhesives, sealants and protective products used for years by motorhome and caravan manufacturers and by caravan workshops. Technical data sheets and safety data sheets are available on the manufacturer website dekalin.de.