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I need to add a couple thin styrene strips to the edges of a hood to widen it. Because of it being such a fragile glue point, and that it will have to be worked on for shaping, I was wondering what glue would be the strongest for this application. Liquid,  super,  epoxy ? Any input would be appreciated. 

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If both the hood and strip are styrene then any liquid cement should do the trick.  Those cements actually dissolve the plastic's surfaces and "weld" the parts together.  The basically become a single piece. That should result in the strongest possible joint.  I like the Tamiya extra thin cement, and I would also wait couple of days before shaping or sanding the glued pieces (to allow for all the solvent to evaporate).

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I would also use Tamiya extra thin. Rather than trying to glue two thin edges together, I lengthened this hood by glueing a wider strip flat to the back edge, forming a “T”. Once it was thoroughly dry, I filed and sanded the inside and outside down to the same thickness as the hood.

421BAFB8-5B77-48BB-B9FC-41393DDE50DB.jpeg

Edited by NOBLNG

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That's two for liquid. Not sure which brand I have, it might just be an old bottle of testors. 

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Testors is just some MEK (Methyl Ethyl Ketone) in a small bottle.  MEK evaporates fairly slowly. While that is desired in some instances I think here I would use a faster evaporating liquid cement. That is the cement both of us recommended. That cement evaporates much faster than MEK alone.

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I never liked the testors stuff because of the real slow cure time. Good to know about the Tamiya.

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If you want faster evaporating, use methylene chloride, aka Weld-On 3 or Weld-On 4.

IPS Weld-On 3 Acrylic Plastic Cement, 1 Pint and Weld-On Applicator Bottle  with Needle, Clear (1): Contact Cements: Amazon.com: Industrial & Scientific

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I do a lot of splicing and adding styrene to edges for better fit. I always use Tamiya Extra Thin Cement. You can't beat it IMO. 

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They make a quick setting version that is my favorite.

24B53611-7AE0-48AD-8D38-D60571E04B9C.jpeg

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Yes, a methylene chloride cement would be best IMHO. Instead of cutting strips, glue your hood edge-on to a flat sheet of styrene and then carve it down to shape later. I'm planning to do exactly this to widen the hood of the AMT '55 Bel Air. 

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Thanks everyone for the input. I will order some new Tamiya liquid glue.

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Another vote for liquid. Also, I have found with using liquid glue due to the melt/weld of it, more often than not after proper sanding, no filler is needed.....

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9 hours ago, tbill said:

Another vote for liquid. Also, I have found with using liquid glue due to the melt/weld of it, more often than not after proper sanding, no filler is needed.....

True, but I also experienced shrinkage (slight sink line) at the joint (I assume due to the solvent evaporating from the plastic joint).  That is why I recommend gluing the parts together, then waiting (few days) for all the solvent to evaporate, and only then sanding and finishing the part.

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14 hours ago, NOBLNG said:

They make a quick setting version that is my favorite.

24B53611-7AE0-48AD-8D38-D60571E04B9C.jpeg

The quick setting is the best glue I have ever used, love it.

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