Ratio
The TDS defines how much component A and B to use. Ratio mistakes often cause soft or sticky resin.
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How to read a resin TDS
A TDS is the project safety map. Instead of guessing from opinions, you check the system limits: ratio, temperature, layer, time and curing conditions.
TDS and safety
In this guide
Quick answer
How to read a resin TDS
A TDS is the project safety map. Instead of guessing from opinions, you check the system limits: ratio, temperature, layer, time and curing conditions.
Technical parameters decide whether a project runs calmly or ends with stickiness, overheating or bubbles.
Read the TDS as a process guide: ratio, temperature, mass, working time, layer thickness and full cure are connected.
How to choose
Do not mix weight ratio with volume ratio.
Compare pot life at the temperature stated in the TDS.
Look for maximum thickness, not only full cure time.
Working time
Pot life depends on temperature and mass in the cup. More mass speeds up the reaction.
Conditions
Humidity, material temperature and substrate temperature affect defects and final hardness.
How to approach it in practice
Step by step
Start with system limits
First check the thickness and mass the resin is designed for. Product naming does not replace technical data.
Compare parameters under the same conditions
Pot life, gel time and curing depend on temperature and sample mass. Comparisons without conditions can mislead.
Plan pouring and degassing
Large volumes need time for mixing, pouring, degassing and leak control. Short pot life can be a real limitation.
Record technical decisions
Note ratio, temperature, batch, pigment and pour time. If a defect appears, you have data to learn from.
Split the project when needed
If layer, mass or temperature exceeds the system comfort zone, staging is safer than fighting exotherm.
Common mistakes
Mistake 1
Confusing pot life with full cure time.
Mistake 2
Mixing weight ratio with volume ratio.
Mistake 3
Ignoring workshop, wood and A+B component temperature.
Mistake 4
Too much resin mass in the cup or mould despite TDS warnings.
Internal links
Read next
Next step
Turn TDS into project data
Use the resin database to compare ratios, layer limits and working times before choosing a system.
FAQ
What matters most in a TDS?
Mixing ratio, pot life, maximum layer thickness, working temperature and cure time.
Does every TDS show maximum layer thickness?
Not always clearly. If it is missing, test carefully or choose a system with better data.
Is SDS the same as TDS?
No. SDS covers chemical safety; TDS covers technical use parameters.