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CPF liner Zemdrain®
Enhancing concrete surfaces
The Controlled Permeability Formwork (CPF) liner Zemdrain® drains the water from the concrete edge zone. This makes the concrete harder, denser and more resistant and significantly increases the service life of the concrete surface. Zemdrain® as a formliner delivers a higher concrete surface hardness and a virtually void-free, low-porosity surface. The improved surface reduces the growth of microorganisms and algae and improves resistance to freeze-thaw and abrasion.
Advantages
- Increased service life of the concrete surface
- Value retention of the concrete surface
- Proven cost savings over the total service life of the structure
- Increased abrasion resistance
- Release agent is not necessary
- Dense, hard and blowhole free concrete surface
- Reduction of blowholes - saves reworking, especially in exposed concrete areas
- Simple formwork application
- Multiple use is possible with Zemdrain® MD
- Zemdrain® Classic TW is tested and approved according
to the highest drinking water criteria
Zemdrain® is DuPont’s registered trademark.
Product variants
CPF liner Zemdrain® Classic
for single use
The Zemdrain® Classic CPF liner is particularly suitable for formwork in large areas.
Zemdrain® Classic variant is a single use product. For repeated use Zemdrain® MD is recommended.
- Controlled permeability formwork liner
- Smooth to slightly structured, grey upper side (concrete side)
- Back (formwork side) black and diamond-shaped recesses
- Optional: Approval for drinking water according to DVGW W270 and W347
CPF liner Zemdrain® Classic – prefabricated
for round container formwork
Zemdrain® Classic prefabricated is a made-to-measure CPF liner which is specially designed as formwork for round containers, e.g. drinking water tanks, clarification tanks and manure tanks.
Prefabrication ensures crease-free lining of circular formwork made of wood or steel.
CPF liner Zemdrain® MD
for multiple use
Zemdrain® MD delivers the same concreting results as Zemdrain® Classic but can be reused several times. Approximately two to three applications are possible thanks to the sturdy mesh on the formwork side.
Zemdrain® MD is the most economical variant due to multiple reusability.
- Controlled permeability formwork liner
- Smooth to slightly structured white upper side (concrete side)
- Back (formwork side) with special drainage grid
- High cost-effectiveness due to possible multiple use (2 - 3 times) and simple, quick installation
- High storage capacity, therefore also suitable for inclined to horizontal surfaces
System solution
Product download
Test certificates / approvals
Technical data sheet
Application guidelines / instruction of use
Environmental declarations
Safety data sheets
REACH Declaration of conformity
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News Archive
CPF liner Zemdrain®: New brochure
News | Feb 2025New test certificates for Potable Water Applications
News | Apr 2024CPF liner Zemdrain®
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