Imperiflex 640 (Quart Kit) 946ml - Flexible Gloss Lacquer -
387,20 € Tax incl.
Imperiflex 640 is a transparent gloss finish lacquer formulated specifically for flexible surfaces: urethane rubbers, polyurethane foams and EVA foam. Its flexible formulation prevents cracking even on parts subject to continuous deformation, making it the go-to finish for cosplay, props and professional scenography. This Quart kit contains 946 ml split across the three components required for application.
Technical specifications
| Feature | Value |
|---|---|
| Format | Quart Kit — 946 ml total |
| Kit composition | 1 can Clear (pint) + 1 can Thinner (8 oz) + 1 can Hardener (8 oz) |
| Mix ratio (by volume) | 2 parts Clear : 1 part Thinner : 1 part Hardener |
| Finish | Transparent gloss |
| Flexibility | High — does not crack on flexible substrates |
| Compatible substrates | Urethane rubbers, polyurethane foams, EVA foam |
| Use level | Professional |
What it's used for
Imperiflex 640 is a multipurpose finish and sealer for flexible parts. It is used both as a base coat and as a final top coat, and is an essential component in flexible chrome systems when combined with Alumaluster. Its most common applications:
- Final gloss finish on cosplay armour, helmets and accessories made from foam or urethane rubber
- Sealing and protection of flexible props and scenography
- Transparent base coat prior to applying Alumaluster to achieve flexible chrome surfaces
- Final top coat over chrome finishes to seal and protect them (accepts alcohol dyes to modify the tone)
- Sealing painted EVA foam to prevent peeling and improve durability
- Finishing of special effects and animatronic parts that require flexibility and durability
How to use it
- Prepare the surface: the part must be clean, dry and dust-free. For maximum gloss, start from a black gloss surface: you can make the part from black-pigmented rubber or apply a coat of gloss black paint before you begin.
- Measure the components: follow the 2:1:1 ratio by volume. For example, for a small batch: 2 parts Clear, 1 part Thinner and 1 part Hardener.
- Mix in order: add the Thinner to the Clear first, mix thoroughly, then incorporate the Hardener. Stir slowly and steadily to avoid bubbles.
- Apply the first base coat: use an airbrush or low-pressure HVLP spray gun. Apply a thin, even coat over the entire part. This first coat acts as a sealer.
- Allow to dry to the touch between coats before applying the next. Apply 2–3 coats for an optimal finish.
- For flexible chrome finish: apply a coat of Imperiflex as a base → Alumaluster for the chrome effect → a final coat of Imperiflex as a protective top coat.
- Clean the gun immediately after use with the appropriate solvent for two-component lacquers.
Usage tips
The base surface determines the final result
Imperiflex is a transparent finish: the gloss you see on the final part depends largely on the surface underneath. A gloss black base — whether the rubber itself pigmented black or a coat of gloss black paint — multiplies the visual effect of the finish. On matte or porous surfaces the result will always be more subdued, regardless of how many coats you apply.
Mix control and working time
Once the three components are mixed, the mixture has a limited working time. Prepare only the amount you will use in the session. If you notice the mixture starting to thicken before you finish, do not thin it by adding more Thinner outside the correct ratio: discard the batch and prepare a new one. Working with a degraded mix produces finishes with poor gloss, bubbles or inadequate adhesion.
Tone modification with alcohol dyes
Imperiflex accepts alcohol dyes to create colour effects over chrome or transparent finishes. Add the dye directly to the already-prepared mixture before applying the final top coat. Start with very small amounts: the lacquer is transparent and dyes have strong tinting power. This technique is especially useful for creating gold, copper or any custom metallic tone over an Alumaluster base.
Frequently asked questions
Can it be applied over any polyurethane foam?
Imperiflex 640 is compatible with most flexible polyurethane foams and with EVA foam. On very porous or open-cell foams it is advisable to apply a more diluted first coat or a sealing primer beforehand to reduce absorption and achieve a more uniform finish. Always carry out a test on a scrap piece of the same material before applying to the final part.
How many coats are needed for a good finish?
In general, 2–3 coats produce a glossy and durable finish. The first coat acts as a sealer and may look slightly matte depending on the substrate. Subsequent coats build up the gloss progressively. For flexible chrome systems (base + Alumaluster + top coat), one well-applied coat at each stage is sufficient.
What equipment is used to apply it?
An airbrush or low-pressure HVLP spray gun is recommended to achieve thin, even coats. Brush application is not suitable for this product: it leaves marks and does not produce the characteristic gloss finish of Imperiflex 640.
Can it be used as a sealer over acrylic paints?
Imperiflex 640 can act as a top coat over acrylic paints applied to flexible substrates, provided the paint is fully cured and solvent-compatible. Always carry out a compatibility test on an inconspicuous area before applying over the entire part, as some acrylics may react with the product's solvents.
What is the difference between this kit and the other available sizes?
The Quart kit (946 ml) is the intermediate format, ideal for medium-sized projects or for those who use the product regularly but do not need the volume of a 1/2 Gallon kit (1.89 L) or a full Gallon kit (3.78 L). The formulation and mix ratio are identical across all sizes.
What is the pot life of the mixture once prepared?
Once the three components are mixed, the working time is limited and varies with ambient temperature: the higher the temperature, the faster the mixture thickens. Prepare only the amount you can apply in the session. Unmixed components, with containers tightly sealed, have a much longer shelf life when stored in a cool, dry place.
Is it possible to achieve finishes other than gloss?
Imperiflex 640 is formulated specifically for a gloss finish. There is no matte version of this product. If you need to reduce the sheen in any area, you can apply a compatible matte varnish as a final coat, although this may affect the flexibility of the finish. Consult Feroca before combining products from different families.
Does it withstand repeated flexing and bending without cracking?
Yes, that is precisely the main advantage of Imperiflex 640 over conventional lacquers. Its flexible formulation allows the finish to move with the substrate without cracking or flaking. It is especially suited to cosplay parts and props that are handled and flexed frequently.