A lab worktop is a critical work surface under constant chemical, moisture and mechanical load. The wrong choice returns as staining, swelling, hygiene problems and early wear. This guide lists what to check when choosing the right worktop.
Reading the standards: EN 438 and SEFA
Compact laminate’s general performance is defined by EN 438, while lab-worktop behaviour is referenced via SEFA. Asking the supplier for the chemical-resistance table and relevant documents is the right first step — it shows transparently which chemicals are resisted and to what degree.
Non-porous surface = hygiene
A non-porous compact surface won’t absorb liquids or microorganisms and withstands daily disinfection — suited to hospital labs, research centres and industrial kitchens. The sealing of joints (sinks, splashbacks) is also decisive for hygiene.
Acid, base and solvent resistance
| Exposure | Typical behaviour | Recommendation |
| Everyday reagents | High resistance | Standard use is fine |
| Strong acid/base | Depends on contact time | Wipe promptly; check the resistance table |
| Solvents | Resistant to most | Limit concentration and time |
| Staining agents | Won’t cling to a non-porous surface | Wipe with a mild cleaner |
Note: the table gives general guidance; the final decision should follow the manufacturer’s chemical-resistance table.
How chemical resistance should be read
Chemical resistance is not only a “stained / did not stain” question. Tests look for colour change, swelling, softening, dulling, cracking or permanent surface damage. The datasheet should therefore list chemical name, concentration, contact time and cleaning method together. The same chemical can behave differently at 5% and 70%; a ten-minute contact and an overnight spill are not the same risk.
Material comparison: compact, epoxy, ceramic, stainless
| Material | Strength | Watch-out |
| Compact / phenolic surface | Balanced chemical resistance, hygiene, impact and cost | Resistance table required for aggressive chemicals |
| Epoxy resin | High chemical resistance for heavy lab use | Weight, cost and lead time |
| Ceramic | Heat and stain resistance | Impact breakage and joint details |
| Stainless steel | Cleaning and certain hygiene protocols | Scratching, noise and reaction with some chemicals |
Specification and procurement check
A good lab-worktop specification defines thickness, surface class, chemical-resistance table, sink type, drip channel, tap holes, edge chamfer, splashback, support/cabinet system and cleaning protocol. Writing only “chemical-resistant worktop” weakens bid comparison; two similar-looking surfaces can perform very differently.
Heat and mechanical resistance
The surface withstands short-term heat; for direct, prolonged heat sources a trivet/protection is recommended. Impact and wear resistance suit heavy laboratory use.
Drip channels, sinks and tap cut-outs
Drip channels, sink recesses and tap holes are cut precisely with project-specific CNC. Correct cutting is critical for both function and sealing.
Practical checklist
- Is there a chemical-resistance table and relevant documentation?
- Is the surface non-porous and disinfectable?
- Do heat and impact resistance suit your use case?
- Can size, thickness, sink/drip-channel cutting be made to measure?
For details see our Laboratory Worktops (G-Lab) page, and for cutting our CNC services.
Sources
#laboratory worktop
#chemical resistance
#G-Lab
#SEFA
#EN 438
#hygiene