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Polypropylene tape usage

by:Yourijiu     2021-02-03


 


polypropylene tape using steps are as follows:


& have spent


( 1) Steel pipe surface treatment: derusting. Remove rust should St3 level, mechanical descaling should reach Sa2 level, and in accordance with SYJ4 0 0, 7 - August 6.


 


( 2) Primer: should adopt special primers.


 


( 3) For primer table dry can tie belt. Note that this tape belong to SY/T0414 - 2007 rules of isolation membrane adhesive tape, bring isolation membrane adhesive tape in strict accordance with construction, general manufacturers can provide specific usage.


 


( 4) The trench backfill: through quality inspection qualified can ditch.

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