Independent · EN / PL / DE / FR

The knowledge base for resin-anchored rock bolting.

An independent, multi-language reference for chemical resin capsules, encapsulation and ground support — built around copper, salt and tunnelling practice, and the Polish and EU norms no manufacturer app covers.

STEEL BOLT RESIN ANNULUS BOREHOLE Ø encapsulation · annulus volume · pull-out

What you'll find here

A field-first reference that turns manufacturer data and hard-won practice into something you can actually use underground.

Knowledge

Materials & installation errors

Capsules, annulus, spin-to-stall — and the mistakes that quietly cost bond strength.

SOON Calculators

Bolt & capsule selection

Check encapsulation length and match the right capsule to the hole, in-browser.

Norms

Polish & EU compliance

PN-G-15091, WUG requirements and EU practice, read plainly in one place.

Independent

Not tied to one maker

Neutral comparison across polyester, silicate and cement systems.

The compliance layer no one else covers.

Manufacturer apps speak the language of their home market. This is the reference written around Polish and EU norms — for KGHM copper, salt mines and tunnelling contractors who have to document what they install.

PN-G-15091resin-anchored bolts
WUGdocumentation & testing
EU · ADRsmall-quantity supply