Vacuum vs Displacement
Posted: October 30th, 2007, 6:52 pm
A few months ago I read the ROLAGS manual for the first time, and there was one point in section 8.1 (Process to be Followed by Technician) that I'd like to hear your feedback on:
[INDENT](1) Inspect the damage from both inside and outside the glass to determine if
the damage is repairable (see clauses 6 and 7);
(2) Remove moisture, dirt, foreign matter, loose glass, and contamination from
the damaged area;
(3) If the temperature of the glass is outside the recommended range, cool or
warm the glass accordingly;
(4) Access the damage through probing or drilling;
(5) Protect the resin from premature curing;
(6) Remove the air from the break, either by vacuum or displacement, and fill the void with resin;
(7) Properly perform pit filling and resin curing;
(8) Finish the repair to be flush with the glass;
(9) Inspect the finished repair (see clause 9).[/INDENT]
I currently use DeltaKits repair bridges, which I would assume, utilize the displacement method of air removal (combined with a vacuum cycle following the displacement, or pressure cycle).
Have any of you weighed this against systems using a pre-injection vacuum cycle, such as Glasweld's Gfusion?
Is there a notable comparison between these two air-removal methods?
Benefits or downsides to either?
Thanks!
[INDENT](1) Inspect the damage from both inside and outside the glass to determine if
the damage is repairable (see clauses 6 and 7);
(2) Remove moisture, dirt, foreign matter, loose glass, and contamination from
the damaged area;
(3) If the temperature of the glass is outside the recommended range, cool or
warm the glass accordingly;
(4) Access the damage through probing or drilling;
(5) Protect the resin from premature curing;
(6) Remove the air from the break, either by vacuum or displacement, and fill the void with resin;
(7) Properly perform pit filling and resin curing;
(8) Finish the repair to be flush with the glass;
(9) Inspect the finished repair (see clause 9).[/INDENT]
I currently use DeltaKits repair bridges, which I would assume, utilize the displacement method of air removal (combined with a vacuum cycle following the displacement, or pressure cycle).
Have any of you weighed this against systems using a pre-injection vacuum cycle, such as Glasweld's Gfusion?
Is there a notable comparison between these two air-removal methods?
Benefits or downsides to either?
Thanks!
