Part 1 · Façade
Joint sealants for façade elements – connection and movement joints outdoors, with additional classes INT/EXT/CC.
HomeTesting Laboratory
02 Lab · Testing Laboratory
Testing to DIN EN 15651 – independent and traceable.
Joint sealants are judged by their characteristics. We test on a manufacturer-neutral basis by the procedures of DIN EN 15651 – the basis for CE marking and the Declaration of Performance. Accreditation of the testing laboratory to DIN EN ISO/IEC 17025 is planned for 2028 – only as an accredited laboratory will we issue accredited test reports. The testing itself we already perform today – and, on request, relieve your own lab.
The standard
DIN EN 15651 – joint sealants for non-structural applications.
The standard applies to joint sealants for non-structural applications in buildings and pedestrian walkways and is the harmonized basis for CE marking and the Declaration of Performance (DoP). It is divided into four parts:
Part 2 · Glazing
Joint sealants for glazing – sealing in structural glass construction (additional class CC).
Part 3 · Sanitary
Joint sealants for sanitary joints – with increased resistance to micro-organisms (XS).
Part 4 · Pedestrian walkways
Joint sealants for walkable and trafficable surfaces – mechanically highly stressed (INT/EXT/CC).
Classification
What the characteristics mean.
A sealant is classified by its movement capability and its behaviour under standardized conditions. Only these classes make products comparable – and market-ready.
- Movement classes: 25LM, 25HM, 20LM, 20HM, 12.5E …
- Modulus: LM (low) or HM (high)
- Conditioning by method A or B
- Use classes: INT (indoor) · EXT (outdoor) · CC (cold-warm)
Characteristic
Movement capability7.5 – 25 %
ModulusLM · HM
Conditioningmethod A / B
UseINT · EXT · CC
ResultCE + Declaration of Performance
Test scope
What we measure.
With a tensile testing machine, climate chamber and standardized specimens we map the decisive properties traceably.
Mechanics & movement
Tensile properties, movement capability and behaviour under elongation.
Adhesion
Adhesion and compatibility testing on relevant substrates.
Conditioning & ageing
Temperature, humidity and weathering by standardized procedures.
Recovery & volume
Elastic recovery and volume loss after loading.
Micro-organism resistance (S/XS)
For sanitary applications to DIN EN 15651-3.
Documentation
Reliable test reports as the basis for CE and Declaration of Performance.
Extended workbench
Outsource testing instead of blocking capacity.
Full order books, but your own lab is at capacity? Hand individual test steps – or the complete test series – over to us. We work to standard and return reliable results. That way you expand your capacity without keeping testing equipment in-house, and gain time for what only you can do.
Discuss outsourcing- Producing H-test specimens to standard
- Curing & conditioning (method A/B)
- Various storage regimes – heat, humidity, water, weathering
- Testing to standard – incl. traceable documentation
Roadmap Accreditation
The path to accreditation of the testing laboratory.
We are building the testing laboratory with a clear goal: accreditation to DIN EN ISO/IEC 17025 – the standard for the competence of testing laboratories. Only as an accredited laboratory may we document testing to DIN EN 15651 with accredited test reports.
Today
Build-up
Lab, testing equipment and procedures are being set up.
27
2027
Validation
Method validation and inter-laboratory tests for assurance.
2028
Accreditation
The testing laboratory is accredited to DIN EN ISO/IEC 17025 – the standard for the competence of testing laboratories.
from 2028
Accredited reports
Accredited test reports (DIN EN 15651) – the basis for CE & Declaration of Performance.
Already today
Development-accompanying testing
- Testing by the procedures of DIN EN 15651
- Comparison values for development – fast and reliable
- No accredited test reports yet – these follow with the accreditation of the laboratory
From 2028
Accredited testing laboratory
- Testing laboratory accredited to DIN EN ISO/IEC 17025
- Accredited test reports – the basis for CE marking & Declaration of Performance
- Manufacturer-neutral – as an independent third party
Straight talk
Frequently asked questions.
Can you already test to DIN EN 15651 today?
The testing itself we already perform today – by the procedures of DIN EN 15651. What is not yet possible before the accreditation of the testing laboratory (DIN EN ISO/IEC 17025 – competence of testing laboratories, planned from 2028) are accredited test reports for CE marking and the Declaration of Performance. We issue those as soon as the laboratory is accredited.
Are you independent of the manufacturer?
Yes. As an independent body we test on a manufacturer-neutral basis – with no interest of our own in the result.
What do you need from us for a test?
Material, details of the intended use (parts 1–4) and the substrates. We agree the exact test scope with you in advance.
Can we outsource individual test steps to you?
Yes. From producing the H-test specimens through curing and various storage regimes to testing to standard, we take on individual steps or the complete test series – ideal when your own lab capacity is tight or you want to free up time for other work.
Next step
Request testing or discuss the roadmap.
Tell us what needs testing – we'll clarify scope, schedule and options transparently with you.