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Dragon Skin FX-Pro (Prosthetic Silicone) for Hemisphere / Dome Mold Calculator

Pre-loads specific gravity (1.07) and 1:1 mix ratio to calculate exact Part A & Part B weights with cup scraping buffer.

Calculated Benchmark Answer

A standard Hemisphere / Dome Mold (Ø10 cm minus 150 cm³ master) requires 129g (4.56 oz / 0.28 lbs) of Dragon Skin FX-Pro (Prosthetic Silicone). Mix 64.6g Part A with 64.6g Part B (8% buffer included).

Casting Material & Volume Mode

SG: 1.07

Pre-loads specific gravity and 1:1 ratio by weight.

hemisphere

Geometry determines the container-volume formula. Use water displacement when the cavity is irregular.

cm(3.9 in)
Min: 2 cm17%Max: 50 cm
cm³(5.1 fl oz)
Min: 0 cm³3%Max: 5000 cm³

Volume displaced by your master object inside the box.

%
Min: 0 %40%Max: 20 %

Compensates for resin clinging to mixing paddles and cup walls (8% recommended).

Preset Values: Buffer Presets
Graduated Mix Volume Schematic
RATIO 1:1
25%50%75%100%PART A [BASE]65g2.28 oz+25%50%75%100%PART B [CATALYST]65g2.28 oz
PART A: 64.6gDragon Skin FX-Pro (Prosthetic Silicone)PART B: 64.6g
Total Batch RequiredKEY RESULT
129.2grams
4.56 oz (0.28 lbs)

Includes 8% waste buffer at SG 1.07

Part A (Base)
64.6g
2.28 oz

Ratio part: 1

Part B (Catalyst)
64.6g
2.28 oz

Ratio part: 1

Mold Cavity Volume
111.8cm³ / mL
3.78fl oz

Net volume before buffer

Verified Casting Kit Reference Spec

Order Dragon Skin FX-Pro (Prosthetic Silicone) Kit

High-tear strength Dragon Skin FX-Pro (Prosthetic Silicone) with verified 1:1 ratio. Ideal for bubble-free casting.

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Dragon Skin FX-Pro (Prosthetic Silicone) vs Alternative Casting Compounds

Compare specific gravities, mix ratios, working times, and cure speeds across casting compounds.

Material / SpecificationSpecific GravityMix RatioPot LifeDemold Time
Dragon Skin FX-Pro (Prosthetic Silicone)ACTIVE1.071:1 (weight)12 min0.75 hrs
RTV-2 Platinum Silicone (Smooth-On Mold Star 15/30)1.071:1 (weight)30 min6 hrs
RTV-2 Tin Cure Silicone (Condensation Cure)1.1210:1 (weight)45 min12 hrs
Jesmonite AC100 (Eco-Resin)1.752.5:1 (weight)12 min2 hrs
Jesmonite AC730 (Stone Casting)1.855:1 (weight)15 min4 hrs
Deep Pour River Epoxy (2:1 Ratio)1.112:1 (weight)90 min48 hrs

Step-by-Step Mix Ratio Derivation: Dragon Skin FX-Pro (Prosthetic Silicone)

How displacement volume, specific gravity, and ratio split combine into final scale weights.

Step 1: Calculate Net Mold Cavity Volume111.8 cm³ (mL)
Formula: V_net = (2 / 3) × π × (D / 2)³ - V_master
Calculation: (2 / 3) × π × (10 / 2)³ - 150 cm³ = 111.8 cm³ (mL)

Calculates the empty fluid cavity by taking the gross 261.8 cm³ hemisphere containment volume and deducting the 150 cm³ displaced by the master model.

Step 2: Calculate Total Batch Weight with 8% Buffer129.2 grams
Formula: W_batch = V_net × SG × (1 + Buffer_pct / 100)
Calculation: 111.8 cm³ × 1.07 × 1.08 = 129.2 grams

Multiplies fluid volume by the specific gravity of Dragon Skin FX-Pro (Prosthetic Silicone) (1.07 g/cm³) plus an 8% buffer for cup scraping and pouring loss.

Step 3: Divide into Part A and Part B by Mix RatioPart A: 64.6g | Part B: 64.6g
Formula: W_A = W_batch × (R_A / (R_A + R_B))
Calculation: 129.2g × (1 / 2) = Part A: 64.6g | Part B: 64.6g

Distributes batch mass according to the exact 1:1 ratio by weight.

MetriFab Precision GuaranteeFormulas cross-verified against Blum, Smooth-On, Polymaker, and eSun technical data sheets.
Zero-Lag SSG

Engineering Specifications & Troubleshooting Guide: Dragon Skin FX-Pro (Prosthetic Silicone)

Factory-tested parameters, common failure modes, and workbench best practices.

Maker Pro Tips
  • Soft, high-stretch platinum silicone engineered for hyper-realistic special effects prosthetics and animatronics.
  • Add SLACKER deadener to soften into human flesh-like tactile feel.
  • Cures in only 40 minutes at room temperature.
Most Critical Mistake to Avoid

Applying over latex or skin oils without barrier seals, causing sticky uncured spots.

Recommended Machine Settings
mixing TechniqueMix thoroughly for 2 minutes, vacuum degas if optical bubble-free clarity is needed.
degassing RequiredYes
demold NoteReady to demold in 40 minutes.

Frequently Asked Questions: Dragon Skin FX-Pro (Prosthetic Silicone)

Mix ratios, degas guidelines, cure times, and mold making tips.

Q1What is the mix ratio of Dragon Skin FX-Pro (Prosthetic Silicone)?
Dragon Skin FX-Pro (Prosthetic Silicone) has a mix ratio of 1 Part A to 1 Part B by weight. Always weigh both components on a digital scale for maximum cure integrity.
Q2How much Dragon Skin FX-Pro (Prosthetic Silicone) do I need for a Hemisphere / Dome Mold?
For a standard Hemisphere / Dome Mold with Ø10 cm outer containment, you will need approximately 129 grams (64.6g Part A and 64.6g Part B) including an 8% waste buffer.
Q3How long before I can demold Dragon Skin FX-Pro (Prosthetic Silicone)?
Dragon Skin FX-Pro (Prosthetic Silicone) has a pot life (working time) of 12 minutes and can safely be demolded in 0.75 hours at room temperature (23°C / 73°F).

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Related Master Reference Guides & Lookup Charts

All 12 Guides →
Specific Gravity
Silicone & Resin Specific Gravity Chart
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Batch Math
Jesmonite AC100/AC730 Mix Ratio Guide
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