Deeper relief
Rope, ashlar, deep rib, carved stone — textures a rigid liner can't release.
What we make › Silicone & polyurethane formliners › Elastomeric formliners
Silicone & polyurethane formliners · Elastomeric formliners
Elastomeric formliners for textures that have to last a whole programme.
Polyurethane and silicone formliners flex off the panel, capture fine relief and survive repeat use. The workhorse of architectural precast, specified to your mix and pour count.
Overview
Elastomeric formliners, in plain terms.
Elastomeric liners are poured rather than formed. The elastomer reproduces the master pattern exactly and flexes to release, so relief can be deeper, sharper and include mild undercut.
Most of the liners we make are elastomeric: polyurethane for the workhorse textures, silicone for fine detail and heritage reliefs.
What sets it apart
Four things that define this route.
Repeat use
Well-handled elastomeric liners run into three figures of pours on normal programmes.
Mild undercut tolerated
Flex lets the liner release small undercuts without a split.
Repairable
Cuts and edge damage can often be repaired in the workshop.
How we build it
From pattern to released tool.
The master pattern is machined, sculpted or scanned, then the elastomer is poured against it. For large liners we pour onto a backing sheet or fabric scrim so the liner stays dimensionally stable on the bed.
We choose the hardness to suit the relief: firmer for shallow texture that has to lie flat, softer for relief that has to flex off deep detail.
Every liner leaves with a material spec and handling note so the yard knows how to clean, store and release it.
The honest bit
What to know before you commit.
Elastomeric liners cost more up front than plastic. They make sense when you need the texture to hold over a real programme — and they're a poor use of money for a single panel with simple board-mark.
At a glance
The ideas in pictures.
Where the formliner sits
Swipe to see the whole diagram
From sample to finished cast
- 01Sample, drawing or scanWhat the finish must match
- 02Master patternCarved, machined or taken from the original
- 03Liner or mouldMade in the right elastomer
- 04Trial castChecked with your mix
- 05Production castsLiner reused across the run
- 06Kept on fileReady for repeats
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FAQs
Questions we hear about this.
Polyurethane or silicone?
Polyurethane for most textures; silicone for fine detail, undercut or aggressive mixes. Our materials page explains the trade-off.
How should we store them?
Flat, clean, dry and out of direct sun. The handling note covers it.
Can you repair a torn liner?
Often, yes. Send photographs and we'll say whether it's worth it.
In this family
Related routes under Silicone & polyurethane formliners.
Silicone & polyurethane formlinersThe parent service overviewPlastic formlinersRigid ABS and PVC liners for simple reliefElastomeric formlinersPolyurethane and silicone for repeat runsSingle-use formlinersOne-off feature panels and short runsReusable formlinersLong-life liners for running programmes
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
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