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Home page » Industrial » Systems & products » PCC Flooring Screed System » Joint sealants » Bauflex 25
Concrete flooring screed

Bauflex 25

bauflexBAUFLEX is a range of two component, catalyst cured sealants for load bearing, saw cut or preformed control joints which require a higher degree of joint arris protection from impact of wheeled traffic than can be provided by traditional jointing sealants. BAUFLEX is designed to provide penetration into joints and is available in two degrees of hardness and flexibility.
BAUFLEX 25 is very flexible material possessing outstanding resistance to deterioration due to weathering, ultra-violet, attack by chemicals present in industrial atmosphere and the ability to withstand repeated cycles of compression and extension over a wide temperature range
BAUFLEX 65 is harder material than BAUFLEX 25 but still with a good degree of flexibility. Contraction joints should be left ideally for 30 days to allow the maximum concrete shrinkage to take place prior to filling.

uses

BAUFLEX 25 is designed for external areas where maximum movement is desirable, BAUFLEX 65 - is designed for internal horizontal saw cuts or preformed control joints in facilities such as warehouses, production plants and food processing areas where joints are subject to loading involving wear and impact. It can also be used for repairing concrete slabs which have experienced random cracking due to shrinkage.

For professional use only.

 

special properties

  • good chemical, impact and abrasion resistance offering excellent protection to the joint arris
  • low viscosity ensures simplicity of mixing and application
  • rapid set minimises traffic disruptions, thus allowing floor areas to be placed into service quickly.

 

Surface preparation

In the case of new joints, concrete must be fully cured, dry and free of any traces of moisture and adequately prepared as below. Do not use in damp or wet joints. Moisture will affect the satisfactory curing of the sealant resulting in a reduction in the hardness or non-curing of the product. BAUFLEX can be used at ambient temperature 10 - 25°C only. Existing joints must be dry and free of any moisture (humidity <4%) and adequately prepared by routing, mechanical brushing, scraping or sand blasting to remove all loose particles, dust, laitance, curing compounds and old sealant by adequate hand or power brushing or by use of compressed air. Surfaces require priming with BAUFLEX PRIMER to obtain a proper bond for the sealant just prior to filling with appropriate BAUFLEX sealant. If required, place masking tape on the floor surface along both joint edges to ensure a neat appearance of the finished joint. A polyethylene backing cord BAUCORD of the appropriate diameter should be inserted into the joint and pushed down to the correct depth.

technical data

BAUFLEX 65 BAUFLEX 25
Density (g/cm3): 1,25 1,25
Pot life (min.): 30 30
Hardness Shore A: 30÷60 30÷60
Tensile strength (MPa): 4,4 3,0
Unit elongation (%): 123 165
Coverage (width x depth):
  • 5 x 5 mm
28,6 m / kg,
tj. 3,5 kg / 100 m
  • 5 x 8 mm
18,2 m / kg,
tj. 5,5 kg / 100 m
  • 6 x 6 mm
20,0 m / kg,
tj. 5,0 kg / 100 m
  • 6 x 10 mm
11,8 m / kg,
tj. 8,5 kg / 100 m
  • 10 x 10 mm
7,1 m / kg,
tj. 14,0 kg / 100 m
  • 15 x 15 mm
3,2 m / kg,
tj. 31,0 kg / 100 m

 

 

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Contact details

© 2019 All right reserved. BAUTECH sp. z o.o. ul. Staszica 25, 05-500 Piaseczno k. Warszawy tel. 22 716-77-91, fax 22 716-77-90, NIP 522-000-09-96, Regon: 012547108, KRS nr 0000166495 Sąd Rejonowy dla m.st. Warszawy, XIV Wydział Gospodarczy KRS, share capital: 51 000 PLN, bank account PKO BP S.A. 57 1020 1068 0000 1502 0146 4957

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