Polymer Tech Mastercast 121A
Published on: Mar 4, 2016
Transcripts - Polymer Tech Mastercast 121A
Clear Epoxy Artwork Resin
~ This resin is an optically clear epoxy resin system formulated to
produce clear laminates, coats, linings etc with good UV stability.
~ It is commonly used to seal/protect artwork, paintings, sculptures etc.
~ It is easy to use, cures at ambient temperature and is self-levelling.
~ The resin is non-flammable, odour-free and has no solvent content.
MIXING RATIO: By volume 1 : 1
NOTE: The mixing ratio must be accurately followed. It is not possible to
change the ratio. This would result in lower mechanical properties and the
resin not drying properly. The mixture should be thoroughly stirred (mix for
3-4 mins) to ensure full homogeneity. Epoxy systems tend to heat up much
faster in a pot than as a thin film. Therefore mix only the necessary amount
usable within the given pot life.
The system can be applied by hand pouring or by brush/roller The resin can
be tinted any colour with the addition of polymer pigments available in all
solid and translucent colours.
Mix in the ratio of 1:1 (by volume) until it is a uniform colour & consistency
(usually 3-4 mins).
Level: ensure your piece is perfectly flat and level, otherwise the resin will
run to the lowest point and "pool" in the centre, leaving too little resin at the
corners. On large canvas paintings/pictures you should tighten the canvas as
much as possible or place a board underneath to support it uniformly.
Bubbles: any bubbles created by hand-mixing can be easily popped by
using a sharp object or by passing warm air over the surface of the resin (e.g
using a blowtorch or hot air dryer on slow speed setting).
Blowtorch: Don't hold the blowtorch or hot air blower closer than 30cm
to your artwork otherwise you risk creating ripples and dimples in the resin
Oust: You will need to protect the piece from dust accumulation for at least
12-24hrs. You can do this by using a dust sheet or a box to cover the piece.
Cleaning: All mixing containers and tools can be cleaned with Acetone or
chemresinsPOLYMER RESIN SYSTEMS
Liquid resins.solid solutions
C (73°F) 25°C (77°F)
Resin 6 500 - 6 800 mPa.s 5 500 - 5 600 mPa.s
Hardener: 2 200 - 2 300 mPa.s 1 900 - 2 000 mPa.s
Mixed Viscosity: 4 400 - 4 700 mPa.s 3 700 - 3 900 mPa.s
I I ' Resin: Clear - Transparent
Hardener Clear- Transparent
,. 23°C (73°F)
Hardener: 0.94 - 0.96 g/cm3
, . I By Weight By Volume
100 parts Resin 100 parts Resin
90 parts Hardener 100 parts Hardener
" (applied 0.5 mm thick)
1 m2per 0.5 litre mixed resin (based on a
self-levelling layer 0.5mm thick).
I ' 23°C (73°F) 25°C (77°F)
(250 g mixed resin): 10 -15 Minutes 10-12 Minutes
23°C (73°F) 25°C (77°F)
(250 g mixed resin) 20 - 25 Minutes 20 - 21 Minutes
(5 mm casting) 55 - 60 Minutes 50 - 55 Minutes
(2 mm coating) 65 - 70 Minutes 55- 60 Minutes
23°C (73°F) 25°C (77D
(250 g mixed resin): 26 - 27 Minutes 24-25 Minutes
(5 mm castings) 4-4Y2Hours 311z- 4 Hours
(2 mm coating) 4Y2 - 5 Hours 4 - 411zHours
F) 25°C (77°F)
6-7 Hours 511z- 6 Hours
Shore D: 75-78
Shore D: 30-35
, I . '. 10D
Suitable for applications up to 50°C (122°F)
(Din 53455) 40MPa
" (Din 53452) 65MPa
1 (Din 53454) 24MPa
(Din 53453) 3.5 kJ/m2"
. ' Good: resistance against water
Fair resistance against diluted acids and
Poor resistance against most solvents
(individual tests are recommended)
Master-Cast 1-2-1 Resin produces an optically clear, high gloss and tough
coating with good impact and abrasion resistance. The excellent clarity and
transparency makes the resin system particularly suitable for the protection and
• Artwork (paintings, sculptures and layered collage)
• Tabletops aRdbar CGunte[s
• Badges, emblems and jewellery manufacture
• Flower-setting and paperweights
~I~'~' ~~Sh:e~lf I~ife~isone year in sealed 'containers as provided. Keep
containers sealed and away from heat or cold.
;. Although the resin is user-friendly it is advisable to follow
good industrial hygiene e.g wear gloves & long-sleeved clothing, don't eaVdrink
when working with the resin. MSDS available on request.