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I was thinkin' (& Googled it...too) maybe some water based "sealer" would work ...ta "seal" up the foam from any harsh solvents in paint &/or fiberglass resin This Varathane Polyurethane clear seems ta "fit the bill" ...even found some that was "triple thick" Before After * Also The plaster...

Ducky says "what about...maybe...tryin' some house type plaster (like for walls) ...as it doesn't have any strong/harsh solvents (like automotive body filler) ...& it may be a bit "gentler" on the foam ;) I'ma "down" for more learnin' ...so, let's give 'er a try :thumbsup: Used some of this...

While the paint wasa dryin' Ducky says, "think ya can "fix up" the Muscle car hood plug, that ya "messed up"? Hmmm...IDK...maybe So, I did a bit of sandin' (better/more productive than justa watchin' paint dry) :cheers2: Just worked on (1) side (at first) ...for a side-by-side comparison...

After a bunch more shapin' :thumbsup: Ducky says "time ta seal 'er up" :) & Maybe try some Acrylic (water based) paint ...as it shouldn't "eat" the foam, like the solvent in the spray paint, did :eek: So, I started off by givin' 'er a base coat, of Yellow Acrylic paint Another view 1 more...

The top piece kept "poppin' up" :ack2: ...&/so, it needed some curvin' My "bright idea" was to do a little "curve/bendin" over my leg/knee ...& then, "SNAP" (deja vous) :furious2: "WTF"...I did it again :mad2::mad2::mad2: Here is a more "flexible" replacement Yup, a piece of Formica...

Second layer is couple of pieces of 1" foam ...with a "creatively shaped" piece of MDF on top :thumbsup: * Again, notice the "seam" (or gap) will be "hidden" in the middle Then, we will use another layer of MDF ...on top of another piece of 1' foam For this "upper" piece of foam ...I...

OK Let's try this again :thumbsup: This time I'ma gonna "creatively cap" each layer of foam with a thin piece of 1/8" MDF ...like these "guys" :2guns: * Notice "this time" I'ma puttin' (hidin') the "seam" between the (2) pieces of foam (in the middle) ** In this pic, the "base" is on top of...

Hey sulak, I'ma havin' lots of fun doin' it ;) & Glad you're enjoying the journey :thumbsup:

I test fit, the hood "plug" on the chassis ...& /also, been workin' on settin' up, my "new" work area :thumbsup: Ducky, doin' an inspection (it's her "day" job) :cheers2: The next day I started noticing some "shrinkage" (I guess ya would call it) :unsure: * Why is it not blue in these pics...

Lookin' & soundin' good...my friend! :2guns: They say "Rome wasn't built in a day" ...maybe ask Denny :smartass::innocent::devil2:

I believe...they have medicine...for that :smartass::innocent::devil2:

That stuff is gonna have to wait ...as installing a steel roof on my house, "should (may) be" my next project :cheers2:

I've been sanding ...& sanding ...& sanding ...& "boy O boy" are my arms tired :surrender: This is an interesting concept ...but, IMO a hybrid go kart sounds kinda overly complicated :huh: As you would need: ...(2) fuel systems (gas tank & battery pack) ...(2) motivators (ICE engine & electric...

The spray primer "messed" the Muscle Car hood up, pretty goodly (badly actually) :ack2: So, I concentrated on the NASCAR "plug" & After several coats of body filler ...& lots more sanding :eek: ...I got the "body work" for the NASCAR hood "plug" about done :cheers2: What ya'all think of that...

I've been workin' on "plug" mold(s) for a hood (actually a couple of different ideas) I'm callin' this one NASCAR & This one Muscle Car (added a couple of layers (1" & 1/2") of shaped foam, on top of the 2" base) Yup, Ducky's still a helpin' Tried the spray foam as a "glue" to "bond" the...

Yup, the youngin's musta out growed us JT Speed Demon Budget go kart...too

OMG how rumors "grow" :smiley_omg: For the record, I've designed & built up to ~25 karts...so far ...but, I've sold a few over the years (ta help pay for materials for more projects) (V8 Chevy starter motor kart, El Dingo, Excalibur & 'wittle 'wesistor, my mini-Jeep ta name a few) &/also...

From my experience, a 24V 240W motor is NOT powerful enough to motivate a kart with a full size rider ...especially when geared high enough, to go 20 - 30 MPH What competition is this for? I use 48V 1,000W MY-1020 brushed motors, on many of my karts ...& can go 20 - 30 MPH...all day long...

I can officially announce: The work area floor...DONE :cheers2: All "butted up" nicely to the storage container :thumbsup: I swept sand into all of the "gaps" ...but, it keeps "fallin' thru" them cracks ...so, "this part" is still a "work in progress" ;) A view from another angle Gave these...

Still workin' on the brick "work floor area" ...in between towing ...& playin' with FG :thumbsup: A little crooked :innocent: ...but, good-n-solid :2guns: Ducky says "Ya need ta have a "border" along this outer edge I agreed ...&/so, "we" installed a 2 x 6 landscape timber :cheers2: Still...