Powder paint is chipping

[Uncle Grump]

All

I am a relative newbie to powder paint - tryed searching the archives on the topic words - got zero hits, so if you all have discussed this - sorry.....

Last night I was tying some hair jigs, and was using a single edge razor blade to clip the stray hairs which extended beyond the wraps by placing the blade over the hair, and pressing against the head.

On two differant jigs - I got chip outs on the paint - black and hot pink colors.

These jigs were baked at 250F +/- for 25-30 minutes.

My understanding was that once powder was baked it was chip proof....

Suggestions?

Thanks

UG

[rr316]

The baking temps should be 350, it cures harder at that point, its still not "chip proof" though, its harder than other baits but after dragging a jig over rocks all day it will still have some chips out of it!

[Uncle Grump]

Thank You - must have mis-read the instructions or some such.

UG

[b1gf1sh1]

what kind of powder paint? some are 400 degrees, some 350, some colors have even less recomended times.

01 White - 13 mins @ 392°F

02 Yellow Chartreuse - 10 mins @ 392°F

03 Green Chartreuse - 10 mins @ 392°F

04 Blaze Orange - 10 mins @ 392°F

05 Black - 10 mins @ 350°F

06 Hot Pink - 10 mins @ 392°F

07 Flame Red - 10 mins @ 10 mins @ 392°F

08 White Pearl - 13 mins @ 325°F

10 Clear - 12 mins @ 340°F

11 Bright Green - 10 mins @ 392°F

13 Yellow - 10 mins @ 400°F

14 Red - 7 mins @ 400°F

15 Purple - 15 mins @ 385°F

17 Glow Overcoat - 10 mins @ 375°F

18 Brown - 12 mins @ 390°F

19 Blue - 15 mins @ 375°F

24 Silver - 10 mins @ 375°F

28 Gold - 10 mins @ 375°F

41-49 All transparent colors - 10 mins @ 392°F

got this somewhere. maybe even here i can't remember. but these are the recomended baking times for maximum hardness/cure on pro-tecs' powder. but 350 for 15 mins. is generally used universally. can't say i notice a difference but i don't have a durometer yet either.

Edited December 3, 2008 by b1gf1sh1

[cadman]

UG,

I have done testing with powder paints on many brands and many colors. Because of the make up of each color and each manufacturer, everyone lists baking temps. I've also done many hardness tests on a lot of paint. Here is my take on this. If you are painting panels, or computer chassis for the government or aerosapce industry, than following strict specs is a must. However after all the testing, I will say that 325-350 degrees for 15 minutes will cover 95% of all paints, with excellent adhesion and hardness after baking. I use about 30 different brands of powder, and never had any problems with that heat range. Hope this helps some....

[EironBreaker]

What are your thoughts on a lower temp for a longer period of time? I pour my heads with the weed guard in and then bake at 285 degrees for 45 minutes. This seems to work pretty good. I put a wooden guard over the weed fibers. I've used a higher temp but seemed to stiffen up the bristles more. Anyone else use a lower temp/longer bake? I hate gluing in guards!

[b1gf1sh1]

my knowledge on weed gaurds is limited but i'd say go with the recomended times. of course theres going to be a drop in ''optimum'' hardness and durrability but that's uniform in the industry. can't fight physics.

[Uncle Grump]

The thermostat on my toaster oven is very course - marked in 50 degree increments -- 300 - 350 - 400, etc. Don't have a internal thermometer for it - should probably try to find something of that type....

I tryed baking some jigs on Fri w/ it set to "350" for 20 mins (per the specs on the jars) - an assortment of colors. I tryed the razor blade again on a jig (hot pink) - it still chipped - so I am going to need to find something else to trim with or a better oven setting.....

These are jigs I was doing up for gifts and thank you's - the chipped ones I can fish with - I sure the fish won't care, but the gift use, they need to be good.....

Thanks for the info...

UG

[smalljaw]

I go with 350 degrees for 20 min. but I have an infared thermometer that I use to make sure the temp. is accurate. I know someone who casts his jigs with the weed guard in place and he cures his at 270 deg. for 42 min. and they are pretty hard but they still chip easier than mine so I guess the higher temp setting is better.

[HookUp]

First, you bang rocks and such, you'll get chippage.

But.

I use to use either a candel or a bic lighter to heat my lead heads before painting.

Both would add a soot to the jig head that could be causing your chipping.

Now I use an alcohol burner with denatured alcohol. I still get chipping on heavily used baits, but nothing like I use to with the candle/lighter method.

[Pup]

Last night I was tying some hair jigs, and was using a single edge razor blade to clip the stray hairs which extended beyond the wraps by placing the blade over the hair, and pressing against the head.

This won't address the chipping, but have you ever tried using tweezers to remove stray hairs? Pointed or slant-tipped work well for me. It's like plucking nose hairs or eyebrows near their follicles.

Less painful though.

I once used an Exacto knife and found myself cutting into thread and top coat periodically.

[Termite]

Uncle,

If you can find a good pair of "Iris" scissors to trim with they will help. If you get a good pair they are very, very small and fine tipped and will trim the hair very close so you can just wrap over the ends.

You should be able to find some on ebay, if nothing else look for Dr. Slick tools. His tools are medical grade so they should be fine. Iris scissors are used for delicate eye surgery to give you an idea of their "delicate" nature.

Mark