You've had tools fail early before
A previous mould died at forty pours when you expected two hundred. Something was off — the grade, the release, the handling, or all three. We'll help you unpick which.
Durability · Release regime
Mould life is chosen. It doesn't just happen.
How we spec silicone and polyurethane against your mix, your release, your pour count and the way your yard actually works. A mould that outlives the programme costs a bit more than one that fails halfway.
When it fits
Why durability is a design conversation.
The mix is aggressive
GRC face-mixes, coloured concretes with certain pigments, self-compacting with plasticisers — these shorten life more than plain OPC. Spec has to acknowledge it.
The programme is long
A tool that has to run for two years on the same programme deserves a grade chosen for the total pour count, not just the first month.
The release regime is inconsistent
Different operators using different amounts of different agents is a common cause of premature failure. Documented release is part of durability.
The choice
What actually shortens mould life.
Concrete moulds don't fail from age. They fail from a combination of chemistry (alkalis, pigments, admixtures), thermal cycling (hot pours in cold moulds), mechanical damage (rough demoulding, dropped tools, aggressive hose-off) and release regime (wrong agent, too much, not enough, applied late).
The mould's grade is chosen to tolerate the chemistry and the thermal profile. The mother mould or backing frame is designed to reduce mechanical stress on the silicone. The release regime is documented in the delivery paperwork.
Nothing here is exotic. It's just deliberate. Most premature failures we see on other people's tools trace back to one or two of those factors being under-thought at spec stage.
What we need
To quote this properly.
Your current release agent
Brand, type, how it's applied, how often. We check compatibility before we spec the silicone.
Mix design in outline
The chemistry the silicone will meet.
Pour cycle timings
How long between pour and strip. Affects thermal cycling.
Who's actually running the tool
One trained operator or a rota? Determines how much release regime discipline the mould has to survive.
The honest bit
Nobody can promise you five hundred pours.
Anyone who quotes you a guaranteed pour count on a silicone or polyurethane mould is either guessing or covering themselves with terms so tight the guarantee is worthless. Real mould life is a range, not a number, and it depends on things you and we can only partly control.
What we can do is give you an honest expected range based on the mix, the release, the pour cycle and the handling — and then, once you're running, take feedback and adjust the spec on future moulds if reality diverges. That's how tool life gets extended over a programme.
There's a temptation to spec the most expensive grade in the range on the theory that longer life justifies it. It's usually not true. A mid-range grade that's right for your chemistry will typically outlive a top-tier grade that's over-spec'd for it, because durability comes from fit as much as from headline pour rating.
Drill down
2 variants of this service.
Each one has its own page with the detail we'd normally cover on the first call.
Related
Where this fits in the wider system.
At a glance
The idea in a picture.
Where the formliner sits
Swipe to see the whole diagram
Get in touch
Send us a photograph of the panel or the elevation.
One photograph tells us what surface you're chasing, and one line about the mix tells us what silicone or polyurethane will survive it.
Real people, a real workshop
You deal with the people who make it.
No call centre and no middlemen. When you contact TCI Construction, you speak to the team who design, build and check your mould.
- A real Warwickshire workshopUnit 15, Waterloo Park, Bidford-on-Avon, Alcester B50 4JG.
- Real people on the phoneCall the team on 01789 224228, Monday to Friday.
- The same team on every jobDesign, production and aftercare come from the people you see here.
- Part of TCI GroupFive specialist brands, one engineering team. Visit TCI Group.
Thomas LaneManaging Director
George PrestonDesign & Project Manager
Kelly BallingerHead of Partnerships
Jim AndertonProduction Manager
TheodoreEmployee Welfare