SILATEC Encyclopedia

P4A glass or P6B glass?

We will be happy to explain the somewhat confusing terminology of DIN EN 356. There are 5 low security classes (orange and light blue) and 3 high (dark blue). Only those marked in dark blue offer effective burglary protection. 


SECURITY SILATEC SAFETY GLASS BURGLARY RESISTANCE P1A P2A P3A P4A P5A P6B P7B P8B P6B P7B P8B IMPACT RESISTANCE

 

 

 

The 5 low classifications P1A glass to P5A glass prevent the glass pane being smashed in, e.g. with a stone. It does not offer traditional burglary protection. For that reason it is also called only "impact-resistant glazing"

The 3 high resistance classes P6B glass to P8B glass offer burglary protection and are accordingly called burglar-resistant glass, P8B glass offering the highest level of burglary protection.

The security difference between impact-resistant glass (P1A to P5A glass) and burglar-resistant glass (P6B, P7B, P8B glass) is extreme. The biggest difference is between P5A glass and P6B glass and can be compared to apples and pears - namely not at all.

As the testing methods are very different: with impact-resistant glass (P1A to P5A glass), a heavy steel ball of around 4 kg is dropped several times on the glass from various heights. By contrast, burglar-resistant glass (P6B, P7B, P8B glass) is dealt with significantly more harshly: using an axe.

Important:

In practice P4A glass and P5A glass is often offered as burglar-resistant glass. This is not correct, as burglar-resistant glass is P6B glass. Or P7B. Of these, P8B glass offers the greatest burglary protection.

The classifications EH1, EH2, EH3 (VdS damage prevention) are even more burglar-resistant.

Of course SILATEC safety glass also meets the requirements for the highest resistance classes - and more. We are happy to help you make the right choice.