Print PDF
Favorite
Email
Step 5Mix Micro-Balloon Putty
Micro-Balloons are tiny hollow spheres of glass or plastic. Mix them with epoxy to make very lightweight putty to fill large holes, or in this case to glue two surfaces that don't mate very well.
Mix the two parts of the epoxy together first. Follow the directions. If you use "ketchup pumps" a.k.a. "metering pumps" be very careful with them. They can gulp air when you're not looking and give you short shots. If you do your measuring with a scale, remember that the two parts have different densities. A 2:1 mix by weight is not exactly the 2:1 mix by volume the manufacturer recommends.
I cut a slot in the lid of a yogurt tub to mix the putty. The microballoons are very light, and a puff of wind makes them go everywhere. The slot keeps most of them from blowing away.
The wipeout that broke this board distorted the foam very badly. The two halves don't mate properly. Or rather when the halves mate well the board is very crooked. So lots of putty is needed.
Mix the two parts of the epoxy together first. Follow the directions. If you use "ketchup pumps" a.k.a. "metering pumps" be very careful with them. They can gulp air when you're not looking and give you short shots. If you do your measuring with a scale, remember that the two parts have different densities. A 2:1 mix by weight is not exactly the 2:1 mix by volume the manufacturer recommends.
I cut a slot in the lid of a yogurt tub to mix the putty. The microballoons are very light, and a puff of wind makes them go everywhere. The slot keeps most of them from blowing away.
The wipeout that broke this board distorted the foam very badly. The two halves don't mate properly. Or rather when the halves mate well the board is very crooked. So lots of putty is needed.
| « Previous Step | Download PDFView All Steps | Next Step » |
 |
Add Comment
|
