Red Devil One Time lightweight filler review

Lean Mean Decorating Queen Dances with the Devil of all Fillers

Red Devil One Time is an all rounder that you will genuinely use all around


  • It can be used both indoor and out
  • It is paintable with waterborne paints in minutes
  • You can fill large and small holes
  • It’s light yet manageable
  • Worth the price tag


  • You need to prime it or give it at least two coats of paint to cover
  • No maximum depth is specified
  • Shrinks slightly
  • Soft even when dry.

This is one of those light fluffy pure white fillers, you know, the kind that fall off the knife and basically go every where but in their originally intended orifice. Not One Time have I ever been able to control those bloody fillers. Yet this filler is a degree thicker than most, allowing it to be masterfully persuaded into the tiniest crevice, yet light enough to hold it’s own in a tunnel of a hole left by an overzealous plumber or electrician. It even says on the pack to add a drop or two of water to the filler if it’s too dry to work with. A handy tip that!


The packaging is full of wondrous statements. ‘Spreads easily’ its does. ‘No sanding required’ well we all know that depends on the applicant. ‘Paintable in minutes’ it certainly is, although may I just remind you that in no way implies that it is sandable in minutes, because I assure you, it is not. In fact, I’m not at all sure exactly how long it takes to fully dry. But the surface did dry just in time for another coat of paint to be applied to obliterate the flashing. ‘Interior and Exterior’ I must admit I am yet to use it outside and really put it to the test, but how many other light weight white fillers can you think of that are suitable for use outside? There aren’t many. So I’m looking forward to an opportunity to try it there. ‘Won’t shrink or crack’ Well I can’t say this isn’t a little far fetched One Time, get on that naughty step. In 2 of the 10 instances I used this It did shrink. However, perhaps I should have filled those holes a little proud. They were neither excessively bigger nor more awkward that the others, so I guess it could have been down to atmospheric properties such as moisture in the substrate or excessive temperatures. ‘Water Clean Up’ yeah, it does. I mean, it’s so easy and clean to work with there isn’t honestly a great deal to clean up, but what there is wipes off the knife and obliterates into a thousand microns at the touch of a damp cloth. What a joy.

To summarise I would say this is a fantastic light weight filler. It has all the hallmarks of a winner. There will always be instances where a light weight ready mixed filler is not quite suitable, fine filling for example, or surfaces where you want the substrate to remain strong and impervious to impact. Then the Red Devil One Time will not be your friend. However keep him on the van for all other filling opportunities. You will not be disappointed.


That was my Red Devil One Time filler review, I hope you enjoyed it. It’s available from any Crown Decorating Centre or online at TopDec Brush

Or see more reviews on the Decorators Forum


Harriet Stone
Painter and Decorator
Harrie Interiors

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