Laminating on a Table

[stoneaxe]

Awesome as usual. One of these days. One criteria for the new house is a two car garage.

[magentawave]

I learned a lot from your video. Thanks for sharing!

Questions please...

1) What is the tube made out of and where do you get it?

2) What kind of plastic sheeting did you use on the table between layers?

3) Do you reuse the tube by wiping it down with acetone after using it, or do you have to throw it away?

4) Do you spackle your blanks before glassing?

5) Would you still use the tube method for laying down the glass even if you don't bag it?

Thanks

[Dwight (DW)]

I learned a lot from your video. Thanks for sharing!

Questions please...

1) What is the tube made out of and where do you get it?

2) What kind of plastic sheeting did you use on the table between layers?

3) Do you reuse the tube by wiping it down with acetone after using it, or do you have to throw it away?

4) Do you spackle your blanks before glassing?

5) Would you still use the tube method for laying down the glass even if you don't bag it?

Thanks

1) thin wall PVC sewer pipe.
2) 3mil from Walmart
3) NEVER use acetone with epoxy. I have two rolls. Set one aside. Let epoxy dry on the roll. No harm. Reuse pipe. Lightly sand if pipe gets lumpy. Been using the same pipes for years.
4) I spackle
5) yes

[magentawave]

Is a bagged board stronger than a non-bagged board, or just lighter?

[Ucycle]

Another good safe option to clean up uncured epoxy is white vinger. I will soak the scissors after i use it to cut wetted clothe. I also use on hand and skin if it did get on me.  Acetone is to dangerous to use both for your health and fire risk(low flash point).

[808sup]

Another good safe option to clean up uncured epoxy is white vinger. I will soak the scissors after i use it to cut wetted clothe. I also use on hand and skin if it did get on me.  Acetone is to dangerous to use both for your health and fire risk(low flash point).

I knew the dangers of acetone but was not aware of the benefit of the white vinegar. Thanks for the heads up!

[getsupngo]

Vinegar works great.
 
I wrap some plastic around the roll up pipes when prepping the table plastic. 

[Dwight (DW)]

Is a bagged board stronger than a non-bagged board, or just lighter?

Stronger

How much is debatable

[punasurf]

Saw a video once, not sure if here or swaylocks, but I have been unable to find it.  It showed someone taking a hammer to samples on eps.  One vac bag and one hand lay.  The vac bag was much tougher.  I wish I could find it.

[Dwight (DW)]

Saw a video once, not sure if here or swaylocks, but I have been unable to find it.  It showed someone taking a hammer to samples on eps.  One vac bag and one hand lay.  The vac bag was much tougher.  I wish I could find it.

It was me.

[magentawave]

And as a comparison of bagged strength verses non-bagged strength, have you done the same bash test with 3 layers of 6 oz E on a non-bagged skin? Was there much of a difference in damage?

Saw a video once, not sure if here or swaylocks, but I have been unable to find it.  It showed someone taking a hammer to samples on eps.  One vac bag and one hand lay.  The vac bag was much tougher.  I wish I could find it.

It was me.

[punasurf]

DW--thanks for re-posting that video.  Do you vac-bag your boards now?

[Dwight (DW)]

Do you vac-bag your boards now?

Yes, I bag everything now.

[Beasho]

The above metrics work out to 5.7oz Resin / 4.0oz cloth for a ratio of 1.42X (Resin / Cloth)

I just finished a project using your "Laminating on a Table" method with Carbon.  I ended up with 20 grams of Cloth and only 30 grams TOTAL added weight.  This worked out to a ratio of 10 / 20 = 0.5X (Resin / Cloth).

I thought I might have botched the repair, and not whetted out the fiber enough.  But, the patch was in the middle of formerly snapped carbon fiber paddle.  4 sessions later the patch (paddle) has held.

I since found evidence that this ratio may have been exactly correct for Prepreg.  

The following link shows and ideal ratio of 35/65 for Resin to Cloth.  Granted this was for Carbon, not Glass  Thoughts?

http://fitwerx.com/carbon-fiber-quality-part-2-of-a-3-part-series-on-carbon-fiber-in-the-bike-industry

[Dwight (DW)]

The above metrics work out to 5.7oz Resin / 4.0oz cloth for a ratio of 1.42X (Resin / Cloth)

That doesn't match my math.

The true weight of my cloth is 3.6 oz. My resin usage is 90% of cloth weight. I used to be at a 1 to 1 ratio, but as my skills with the wetout table improved, I hit 0.9 to 1.

It basically boils down to how low can you go, and still know its fully wetted, no dry spots.

I've tried going lower, but it gets to be too much work and the risk of fabric damage increases.

I'm happy at 0.9 to 1 with a touch of extra resin left on the table.