PENNGUARD® Block Lining System – The most versatile acid resistant chimney lining for fossil fired power stations

How Pennguard® chimney linings protect your stack

Closed-cell borosilicate glass is the key to the Pennguard® Block Lining System. Lightweight borosilicate glass blocks are manufactured under highly controlled conditions, and are attached to the internal surface of power plant chimneys, stacks, flues, liners and ducts, using a durable, flexible adhesive.

The borosilicate glass blocks are completely impermeable due to their closed-cell structure. The adhesive remains flexible in the long term, allowing the Pennguard® borosilicate glass Block Lining System to last, potentially for decades.

The Pennguard® borosilicate glass Block Lining System can be installed relatively simply onto brick, concrete, steel and FRP substrates of new and existing chimneys and ducts by local semi-skilled workers, under Hadek’s supervision.

What’s unique about Pennguard® chimney linings?

• Chemical resistance
  - suitable for a wide range of fuels (coal, oil, petcoke, lignite) and operating conditions
  - from low temperature wet flue gas to high temperature untreated gas, even with a high sulfur content
• Temperature resistance
  - up to 200 °C / 392 °F, or even higher for short periods
• Thermal shock and cycling resistance
• Lightweight
  - 12 – 15 kg/m2 / 2.5 - 3 lbs/sqft, does not require anchors, very suitable for seismic regions
• Long service life
  - virtually maintenance free
• Uncomplicated installation method and suitable for a wide range of substrates
• Highly suitable for most new and existing chimneys and ducts