Make an Auto Lens with Clear Resin and Silicone Molds | Tutorial
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Published 2017-08-16
In this video, we go through the process of re-creating a rare brake tail-light lens for a 1958 BMW Isetta. We go through setting up a properly made 2-part silicone mold with vents and a fill port, as well as many tips and tricks along the way. We will finally cast BJB's WC-783 Clear Polyurethane Resin in to produce a beautiful tail light lens that looks as good as the original!
Watch Part 2: • Make Auto Rubber Trim w/ Silicone Mol...
Shop our selection of silicones or speak with our technical staff to help you pick the right one. We also have a huge selection of castable polyurethanes for making parts in the mold; from soft, flexible gels, tough rubber, on up to rigid plastics!
www.BJBenterprises.com/
WC-783 Clear Polyurethane: bjbmaterials.com/wc-783-a-b/
TC-5041 Silicone: bjbmaterials.com/tc-5041-a-b/
Color Dyes: bjbmaterials.com/pigments/polyurethane-tints-dyes
Mixing Spatula: bjbmaterials.com/mixing-spatula/
Insta-Cure CA Glue: bjbmaterials.com/adhesives/armor-bond/insta-cure-c…
Insta-Set Accelerator: bjbmaterials.com/insta-set-ca-accelerator/
Vents/Registration Keys/Fill Ports/Clay: bjbmaterials.com/accessories/mold-kit-accessories
For tints used in this video:
Contact BJB for recommendations. www.bjbenterprises.com
0:00 Introduction
0:38 Taking the Mystery Out of Materials!
0:46 1958 BMW Isetta 300
1:15 Silicone Molds Reproduce High Gloss Finishes
1:30 Splitter Board
1:54 Building Blocks
2:00 Acrylic Registration Keys
2:08 Insta-Cure CA Glue
2:14 Insta-Set Accelerator
2:30 Dry Fit Keys
2:35 Small Key for EZ Reference
2:41 Mark with Pencil
2:56 Hot Glue Mold Box
3:02 Clean Lens
3:05 Don't Need Mold Release
3:09 Silicone is Non-Stick
3:15 Silicone Sticks to Silicone
3:20 Cover Lens
3:26 TC-5041 Platinum Silicone
3:50 Isopropyl Alcohol
4:04 Carefully Pry Up Silicone
4:11 Leave Lens In Mold
4:23 Add Acrylic Vents and Fill Port
4:31 Cleaner method than cut Vents and Fill Port.
4:50 Fill from Low Point Vent at High Points
5:03 Don't Disturb High Gloss Lens
5:34 Seal Around Edges
5:38 Can Also Use Vaseline
5:52 Remove Vents and Fill Port
6:02 Remove Mold Box
6:07 Slowly Separate Mold Halves
6:12 Our Beautiful Mold!
6:20 Casting the Lens
6:26 No Mold Release for Best Finish
6:32 Lower Mold Life BUT Less Labor
6:39 Strap Mold to Board
6:45 Don't Over Tighten
6:49 Insert Vent Straws and Pour Funnel
6:52 Explained in Intro Mold Tutorial
6:58 Angle Mold For Best Results
7:27 PSTF Dye
8:33 Accelerate Cure with Heat or Faster Work-Time System
8:55 Accomplished with No Pressure!
8:59 Vacuum vs Pressure
9:11 Vacuum Physically Removes Air
9:18 Rigid Materials: Air bubble won't come back
9:22 Flexible Materials: Air bubble CAN come back
9:31 Pressure Casting is a Good Insurance Policy
9:39 Pressure forces material into fine detail and small air pockets.
9:45 Pressure is Not 100% Effective
All Comments (21)
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This was THE ONE VIDEO I've been looking for . . For Ever ! . . . . All of the others were . . A bunch of nonsense, equipment you don't need, music you don't want to hear and them being as Clueless as I was . . . . Thanks A Lot. 😁👍
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I wish stuff like this was introduced in high school. I see this as an adult and I love it but it would take a lot of time to learn and be proficient enough to make a living off of.
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This has to be a benchmark for informative videos, right down to the clear no nonsense response to questions.
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Very interesting, simple and easy to understand video, thank you
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I was looking at custom lenses for motorcycle parts and it was outrageous, now I find this and it's something I can do with my kids thanks a lot! This is great
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Been trying to figure this out for ages. Thanks for the details video👍
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thank you buddy..you are legend for helping people.
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thank you very much , a great tutorial.
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This is beautiful !
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This... Is going to help with a non-car related project... Thank you.
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That was a superb video. Thanks very much. I've subscribed and will be giving this a go.
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Me and my father love the Isetta, on Brazil she was made by Romi, the Romi-Isetta. I dream in buying one and restoring it!
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Will be trying to do this during the summer time. Lots of people in my car community want clear reflectors for custom taillights and headlights
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Interesting...
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I would love to see if you could make a clear lens from a 3d printed part. The videos are getting so much more informative. Thanks for sharing the information!
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Another great video.
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Excellent quality. I enjoyed that, thank you. I like the pop up tail lamps on the earlier cars. My Brighton built Isetta has Land Rover tail lamps.
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This is so cool 🤘🏽🔥😀
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Amazing....
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Thank you the 76-80 Cars I deal with can have Quite hogh NOS prices n Reprodicers are going ng in my opinion too. Both Types of casting important to know
