Such visual defects include 'fisheyes' or 'cratering' and 'telegraphing'.
The joint compound compositions display significantly reduced cratering, reduced shrinking, greater sag resistance, and excellent workability.
The composition of the present invention produces a joint compound that shrinks less and is resistant to cracking and cratering.
The process results in gas separation membranes having good gas flux, selectivity and low cratering.
The present invention relates to electrodepositable coating compositions that produce cured coatings that exhibit resistance to cratering.
These compositions exhibit improved crater control.
Any organic matter on a substrate is removed without popping phenomenon.
The invention also concerns a use of the proposed material for filtering coatings, in particular water-based coatings, the layers acting as dirt or crater-prevention filters.
Hydrolyzable silane groups can also be incorporated into the reaction product to further enhance its crater resistance property.
The use of the tin catalysts of the invention enables crater formation to be largely prevented since hydrolysis-stable tin complexes are used.
When a substrate is dipped in the high-concentration ozone water, any organic matter (for example, resist) on the substrate is removed without popping phenomenon.
If the discharge occurs slowly, only melting and solidification with crater formation and low material removal occur.
The B-containing Fe or Fe-Zn alloy plating serves to stably prevent formation of craters in coating such as electrodeposition coating.
These silicate dispersions are useful in coating compositions, particularly in electrodepositable coating compositions, where they impart improved crater control.
Stress waves (159, 152) are provided to work a substrate, causing dimples (170) in the workpiece, along a uniform pressure profile in the workpiece.
A process for preparing acrylic polymers having good crater resistance by continuous polymerization in vessels having agitating means tip speed from 500 to 1200 rpm.
To avoid the formation of craters around the primary air openings (33) the stud-like nozzles (34, 34') are mounted at least in the majority of the openings (33).