(1) is general not saturated get together fat colophony recipe
The first kind of colophony is made
Material name dosage
191#/196# is not saturated get together fat colophony 100
Solidify agent (the form a complete set when purchasing resin is bought) 2, 4
Accelerant (the form a complete set when purchasing resin is bought) 2, 4
Light qualitative calcium carbonate (filling) 5-10 portion
Color is burnt (colophony uses dye) extenuatory
Bo fine cloth (low alkaline) 0.2, 0.4 fabric width 900, 1000mm
The 2nd kind of colophony is made
0.45mm of facing of colophony of 33# gel coat is equivalent to 450g/m3
Dosage of solidify agent, accelerant is Alexandrine
Short cut into shreds, face felt is extenuatory
Benzene already Xi (thinner 3-5 portion
(2) mould is handled
The mould can be cement model, also can be model of glass reinforced plastics. After mould surface burnish is smooth, with surface of blowtorch general mould the heat that bake waxes next. Candle is optional 8# candle or palmy candle, use level of burnish of thick sand paper first, change stage by stage next make light with fine sand paper, till be used to polish of 3000# sand paper.
Besmear first after good mould fully agent of drawing of patterns.
Recipe of agent of drawing of patterns
Name dosage
Get together already Xi mellow 8g
Mellow already 44mL
Water 48mL
Acetone 5mL
(3) craft
Above all agitate of the stew in water get together after Xi alcohol dissolves completely, already dropped in temperature filter, besmear next brush mould face, besmear 2 times commonly, wait for the upper mould after agent of drawing of patterns is dry.
Part agent of gel coat colophony, solidify, accelerant next metric hind in putting recipient, mix the gel coat colophony in solidify agent and container agitate first, wait for right amount lubricious burnt agitate is joined after mix is even even again add enters accelerant agitate even, can brush the mould surface besmear that there is velar agent in besmear can brush with wool, ply of gel coat resinous makes an appointment with 0.4-0.5mm, spread one layer weak point to cut felt next, with brush squeezing ramming, colophony of a 191# is brushed when waiting for gel coat colophony not to stick a hand, 191# resinous mixes contract gel coat same, but need to add enters light qualitative calcium carbonate and continue even. After the layer is brushed, this spreads cloth of fine of a Bo, brush colophony of a 191# , press a cloth next a colophony expects paste is made and with this analogize, spread 9 cloth to be able to achieve requirement ply commonly, when reaching last, lubricious paste is added in colophony.
Below the working environment temperature of 20 ℃ above, colophony solidify time is commonly 20, 30 minutes, a when the besmear that need place brushs after coagulating first, besmear again brush the 2nd; The affiliation of the speed of solidify and solidify agent accelerant measures an impact directer, add rate of the amount is large solidify fast, but need the left and right sides 20 minutes according to craft commonly coagulate first can.
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