SHAPING TIPS

With both the white MDI surfblanks and the Biofoam surfblanks are slightly harder to plane because of their cross-linked properties. Planer blades need to be sharp and/or you need to mow the blank a little slower than typical TDI foam. 

If the blank is cut on the computer there is no problem. The tight cell structure and properties of MDI allow it machine very cleanly. 

When finish shaping the white MDI surfblanks it might be best to start with one grit coarser to sand than normal and then finish from there as you normally would finish. You’ll find that although it may take a couple more minutes to finish, the resulting board is super clean, strong and takes color better.  

The Biofoam surfblank is very easy to finish with the normal shaping process used. It may feel a little on the soft side when finished but let the blank sit overnight before glassing and it will harden up tons.  

GLASSING TIPS

Glassing the white MDI surfblank is as normal except that you will find that it takes 10 – 15% less resin to laminate resulting in a very strong and light board. 

Glassing the Biofoam surfblank takes a little extra care. While Biofoam surf blanks make great surfboards, some issues have come up as to the way they take color, airbrush in particular. While color in the laminate works great, or of course, art on the hot coat, much airbrush color on the foam crystallizes. Clear boards or those done with resin tints have been working well. If using polyester resin squeegee on a cheater coat of resin to seal the blank before you laminate. Then proceed as normal.

If epoxy is used, consider the airbrush notes above, then glass as normal.

* NOTE: Please realize that Biofoam surfblanks are a new product and although they have been tested and make beautiful functional surfboards, all variations of color layup and airbrush have not been tried yet. We have done opaques and tints and some airbrush that have all come out well but we simply have not hit all the color range.

If you run into any difficulties with colors, or anything else, please contact us immediately. All feedback is appreciated.