Product comparison

Pros & Cons

  • Durabilty
  • Budget friendly
  • Integrated ferrule allows the mast the bend cleanly at the joint
  • Consider that epoxy masts are not as stiff as carbon masts. Windsurfers above 60kg who aim to get planing should consider carbon mast alternatives

Windsurf Mast Specifications

Compare Constant Curve Carbon Fiber Quality Finishing Base % Top % Stiffness IMCS Weight
Epoxy RDM 220 Fibreglass Standard Gloss 65 % 79 % 7,5 0.9 kg
Epoxy RDM 240 Fibreglass Standard Gloss 65 % 79 % 7,5 0.99 kg
Epoxy RDM 260 Fibreglass Standard Gloss 65 % 79 % 7,5 1.05 kg
Epoxy RDM 280 Fibreglass Standard Gloss 65 % 79 % 8,5 1.15 kg
Epoxy RDM 300 Fibreglass Standard Gloss 65 % 79 % 9,5 1.4 kg
Epoxy RDM 320 Fibreglass Standard Gloss 65 % 79 % 10 1.55 kg
Epoxy RDM 340 Fibreglass Standard Gloss 65 % 79 % 11 1.85 kg
Epoxy RDM 370 Fibreglass Standard Gloss 65 % 79 % 13 1.9 kg

Looking for a specific product specification?

Check out an extensive overview of all the available specifications.


Which masts do you measure for the data of the Mast selector Matrix Tool?
Mostly we take multiple C100 masts as the reference of various brands, in general those represent the most accurate bend curve of the sails. This is because sail brands design the sails to perform best on those C100 masts. We also found quite big differences in tolerances regarding production with all brands. Fluctuations of bend curves and stiffness from +/- 1-2 points (bend curve) which proves that none of the brands are 100% consistent. So we measure several masts per brand and take the average of those measurements into account when constructing the Mast Selector Matrix Tool.
Can I interchange top and bottom mast pieces of Unifiber masts - for example a 430 bottom with a 400 top?
Because of the integrated ferrule system we use, each top and base match a pre-defined conical shape determined by the optimum load distribution for that model. In production the top is made to fit precisely on the base of the relevant model. Different bend curves alos have different wall thickness as well as varying geometric shapes, so it's technically not possible or advisable to exchange base and top parts.
What's the minimum overlap required for a mast extension inside a Unifiber mast?
Unifiber recommends a minimum of 100 mm. of mast extension to overlap the inside of the mast to prevent stress load damaging the base of the mast.
What does 1 Year Unconditional + 1 Year Conditional warranty cover?
Warranty is valid 2 years after date of purchase. When making a warranty claim in the first year the product is unconditionally warranted. When making a warranty claim in the 2nd year the product must have clearly suffered from a manufacturer error.
Why are high specification masts not standard supplied with a mastbag?
According to industry standards at least C80 and C100 masts are supplied including a mastbag. At Unifiber we choose not to for 2 reasons. The 1st reason is that we aim to offer our product for the best price to quality ratio and for example if you have for instance an existing mastbag or equipment bag a mastbag is not neccessary. The 2nd reason is that we have rental centers as customers who are not in the need of mastbags.