MasterSeal P 640 - Single component polyurethane primer for absorbent substrates prior to application of MasterSeal M 635


How does MasterSeal P 640 work ?

MasterSeal P 640 is a single component, polyurethane based, solvent containing primer for absorbent surfaces.


Recommended Uses

Primer for polyurethane waterproofing membranes like certified MasterSeal M 635.

Can be applied on concrete, cement mortar, wood, etc.


What are the features & benefits of MasterSeal P 640?

  • Single component product that allows simple application without the need of mixture.

  •  Excellent adhesion

  •  Excellent penetration and sealing of pores of concrete

  •  Fast Curing

  •  Elasticity to absorb substrate movements

  •  Resistant to standing water

  •  Frost resistant.




Please enter your full name

Please enter your Organisation Name

Enter Your Adress

Provide your contact number

Provide your Mail ID

Enter the product name you are interested

User agreements
Please don't forget to fill in your address if you wish to receive information via mail. BASF will only use your data to reply to your request. We will save your data only as long as necessary to answer your question. The data supplied voluntarily by you will be stored and processed by BASF using IT systems. Insofar as personal data are involved which we store in order to cultivate business relations, BASF assures you that all rules and regulations of the German Data Protection Law will be respected. Your personal data is not passed on by us or by our agents for use by third parties in any form whatsoever, unless we have obtained your consent or an official injunction to do so. You have the right to check all data relating to your person stored with us and inform us, if it is in your opinion out-of-date or incorrect or should be deleted. To inform us, just send an email to the email address indicated in the imprint or to our Data Protection Officer (see Data Protection).
* Please fill out these fields to help us to process your inquiry. All address-data submitted will only be used for this purpose.


MasterSeal P 640 Technical Datasheet

pdf (128.25 Kb)