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Just to update - and hopefully close - this thread, I bought this =
solvent from Amazon: =
https://www.amazon.com/dp/B0DS69HMN6?ref=3Dppx_yo2ov_dt_b_fed_asin_title. =
It was a little less expensive than the Weld-On and I figured it was =
probably the same formulation. And, even this was probably more than =
the hair clip cost to begin with. As many of the reviewers had noted, =
the solvent poured pretty readily out of the applicator, but it seemed =
to do its job just fine. I =E2=80=98glued=E2=80=99 the hair clip back =
together and left it lightly clamped for 72 hours. I just tested it and =
it seems to be holding well. The package says that the bond continues =
to strengthen for several weeks so I will wait a bit longer to give it =
back to my granddaughter. I will re-weld it and add in a small =
stainless screw and nut, should =E2=80=9Churricane Ellie=E2=80=9D break =
it again.
My thanks to all here for helping me keep my Grandpa Fixit status intact =
just a little longer.
Jim
> On Oct 7, 2025, at 2:18=E2=80=AFPM, David Scheidt =
<dmscheidt@gmail.com> wrote:
>=20
>=20
>=20
>> On Oct 5, 2025, at 17:50, Jim Stone <1789alpine@gmail.com =
>>=20
>> =EF=BB=BFMy granddaughter asked me to fix her favorite hair clip and =
I=E2=80=99d like to keep my reputation as Grandpa Fixit intact. The =
part that came off will be under stress when the clip is used. The =
plastic didn=E2=80=99t break; the larger, decorative part of the clip =
came loose from the spring clip. It looks to me like it was originally =
solvent welded, not glued. =20
>=20
>=20
> Methylene chloride is the traditional solvent for acrylic welding. It =
is now banned for most uses, so newer forulmulations use something else. =
I have not used any of them, as I don=E2=80=99t work with acrylic. But I =
did do some in the mists of time. There were two types we used. One =
was a thin liquid (straight methylene chloride, or very nearly, I think) =
that was used for fabricating stuff with tightly fitted gap free joints. =
The other was a gel that would work for joints with a gap, it had =
acrylic in it, I think, which is what gave it gap filling power. Pick =
the right sort, based on how well your parts go back together. =20
>=20
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"overflow-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;">Just to update =
- and hopefully close - this thread, I bought this solvent from =
Amazon: <a =
href=3D"https://www.amazon.com/dp/B0DS69HMN6?ref=3Dppx_yo2ov_dt_b_fed_asin=
_title">https://www.amazon.com/dp/B0DS69HMN6?ref=3Dppx_yo2ov_dt_b_fed_asin=
_title</a>. It was a little less expensive than the Weld-On and I =
figured it was probably the same formulation. And, even this was =
probably more than the hair clip cost to begin with. As many of =
the reviewers had noted, the solvent poured pretty readily out of the =
applicator, but it seemed to do its job just fine. I =E2=80=98glued=E2=
=80=99 the hair clip back together and left it lightly clamped for 72 =
hours. I just tested it and it seems to be holding well. The =
package says that the bond continues to strengthen for several weeks so =
I will wait a bit longer to give it back to my granddaughter. I =
will re-weld it and add in a small stainless screw and nut, should =
=E2=80=9Churricane Ellie=E2=80=9D break it again.<div><br></div><div>My =
thanks to all here for helping me keep my Grandpa Fixit status intact =
just a little =
longer.</div><div><br></div><div>Jim</div><div><div><br><blockquote =
type=3D"cite"><div>On Oct 7, 2025, at 2:18=E2=80=AFPM, David Scheidt =
<dmscheidt@gmail.com> wrote:</div><br =
class=3D"Apple-interchange-newline"><div><div dir=3D"ltr"><div =
dir=3D"auto"><div id=3D"m_4421797582628636719AppleMailSignature" =
dir=3D"ltr"></div><div dir=3D"ltr"><br></div><div =
dir=3D"ltr"><br><blockquote type=3D"cite">On Oct 5, 2025, at 17:50, Jim =
Stone <<a href=3D"mailto:1789alpine@gmail.com"; =
target=3D"_blank">1789alpine@gmail.com</a>> =
wrote:<br><br></blockquote></div><blockquote type=3D"cite"><div =
dir=3D"ltr">=EF=BB=BF<span>My granddaughter asked me to fix her favorite =
hair clip and I=E2=80=99d like to keep my reputation as Grandpa Fixit =
intact. The part that came off will be under stress when the clip =
is used. The plastic didn=E2=80=99t break; the larger, decorative =
part of the clip came loose from the spring clip. It looks to me =
like it was originally solvent welded, not glued. =
</span><br></div></blockquote><div><br></div><div><br></div>Methylen=
e chloride is the traditional solvent for acrylic welding. It is now =
banned for most uses, so newer forulmulations use something else. I have =
not used any of them, as I don=E2=80=99t work with acrylic. But I did do =
some in the mists of time. There were two types we used. One =
was a thin liquid (straight methylene chloride, or very nearly, I think) =
that was used for fabricating stuff with tightly fitted gap free =
joints. The other was a gel that would work for joints with a gap, =
it had acrylic in it, I think, which is what gave it gap filling =
power. Pick the right sort, based on how well your parts go back =
together. </div><div dir=3D"auto"><br></div></div>
</div></blockquote></div><br></div></body></html>=
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