BST 40 L, 50 R Shower board corner, left and right

Prefabricated moulded part for sealing vertical offsets/skirting at the end of sloping screeds with floor-level showers.


  • For all codex sealing systems
  • For load classes A, A0, B, B0 and C according to ZDB bulletin
  • For water impact classes W0-I, W1-I, W2-I and W3-I according to DIN 18534
  • For showers, baths and toilets
  • For retirement homes and hotels
  • For interior and exterior use
  • For residential, industrial and commercial areas
  • On cement screeds and concrete
  • On gypsum, lime cement and cement plaster
  • On gypsum carton and gypsum board plates, tile backing elements


  • Pre-punched and embossed
  • Available for left and right connection
  • Waterproof and chemical-resistant
  • Frost and heat resistant
  • Easy to process
  • Material thickness: 0.7 mm
  • Dimensions: 120 x 120 mm
  • Offset height: 20 mm
  • Matches codex Sealing tape
  • Highest quality level 4 according to DGNB criterion ENV 1.2 Risks for the local environment
  • EMICODE EC 1 PLUS / very low-emission
  • For healthy construction

Technical data

Pack type


Pack size

10 pieces

Shelf life

24 months




approx. 12 cm


approx. 12 cm


fold 20 mm and fold 28 mm


approx. 0.7 mm

Ordering information

Article Article number Packsize Shipping unit
codex BST 40 L / 20 mm 86240 10 pieces
Pack :
10 pieces
codex BST 40 L / 28 mm 165068 10 pieces
Pack :
10 pieces
codex BST 50 R / 20 mm 86241 10 pieces
Pack :
10 pieces
codex BST 50 R / 28 mm 165069 10 pieces
Pack :
10 pieces

Quality seals and badges


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