PPS40045
PPS40045 PU primer for PU foam, mahogany
Two-pack pigmented polyurethane primer in mahogany for cast PU-foam parts (cornices, mouldings, carved ornaments) and MDF. Good adhesion to PU foam and MDF, high solids (76 %). It's the adhesion coat under coloured PU enamels; the red-brown tone makes a good ground for patina and distressing — where edges and relief are sanded through, a warm wood-like tone shows. Hardener is C20040 (standard) or C20041 (flexible, for bendy parts and problem foam, slower drying). There is no t-color.ru page — data come from the dealer card and the 2019 Technocolor catalogue.
- priming PU-foam parts before coloured enamels
- priming MDF before coloured enamels
- flexible parts and problem foam (with C20041 hardener)
- coloured ground under CQS patina and shabby-chic distressing
Mix calculator
Ask about PPS40045
Answers are based on the PPS40045 data and the products it mixes with.
Mixing matrix
- C20040Hardener% by weight: 20 %catalog% by volume: 30 %recommended
Standard: rigid PU-foam parts, sound foam, MDF. Faster drying.
Fixed ratio. Don't overdose to speed it up — you'll get a brittle film.
- C20041Hardener% by weight: 20 %catalog% by volume: 30 %recommended
Flexible parts, problem foam, adhesion failure on the standard hardener. More elastic, better adhesion, slower drying.
Use instead of C20040, not on top of it.
Only if C20040/C20041 can't be had — check with Technocolor first.
- S50Thinner% by weight: 20–30 (typ. 25) %dealer% by volume: 40–50 %dealer
Universal thinner, normal evaporation — the default.
Stir thoroughly before use (pigment settles).
- S50Thinner% by weight: 30 %schedule
'Finishing PU-foam (PU) products' schedule
- S80Thinner% by weight: 20–30 %recommended
Only in heat above ~25 °C or on large flat panels.
More dust pick-up and more sag risk on verticals.
| Role | Material | % by weight | % by volume | When |
|---|---|---|---|---|
| Hardener | C20040 | 20 %catalog | 30 %recommended | Standard: rigid PU-foam parts, sound foam, MDF. Faster drying.Fixed ratio. Don't overdose to speed it up — you'll get a brittle film. |
| Hardener | C20041 | 20 %catalog | 30 %recommended | Flexible parts, problem foam, adhesion failure on the standard hardener. More elastic, better adhesion, slower drying.Use instead of C20040, not on top of it. |
| Hardener | PC20042 / PC20 | — | — | Only if C20040/C20041 can't be had — check with Technocolor first. |
| Thinner | S50 | 20–30 (typ. 25) %dealer | 40–50 %dealer | Universal thinner, normal evaporation — the default.Stir thoroughly before use (pigment settles). |
| Thinner | S50 | 30 %schedule | — | 'Finishing PU-foam (PU) products' schedule |
| Thinner | S80 | 20–30 %recommended | — | Only in heat above ~25 °C or on large flat panels.More dust pick-up and more sag risk on verticals. |
Percentages are per 100 parts of component A.
Characteristics
- Solids
- 76 ± 1 % by weight, part Adealer
- Viscosity
- 25 ± 2 sdealer
- Density
- 1.5–1.6 g/cm³recommended
- Gloss
- matt (not rated)recommended
- Pot life
- 3 hdealer
- Drying · Touch-dry
- 30 mindealer
- Drying · Sand or stack
- 3–4 hdealer
- Drying · Full cure
- 6 hdealer
- Drying · Conditions
- 20 °C
- Drying · With C20041
- slower than with C20040 (not quantified)dealer
- Hardness
- sands well by hand (series statement; no hardness figure)catalog
- Elasticity
- high; higher still with C20041dealer
- Lightfastness
- not relevant — always overcoatedrecommended
- Thixotropy
- norecommended
- Adhesion
- good adhesion to PU foam and MDFdealer
Colours
- PPS40045 · mahogany (red-brown)
Application
HVLP
- Consumption
- 150 g/m²dealer
- Recoat
- enamel after 3–4 h and sandingdealer
- Sanding between coats · Grit
- P280–P320
15–20 cm distance, 50–75 % overlap, fan fully open. Hit carved foam from several angles in a cross pattern without flooding the recesses. recommended
Conventional spray
- Consumption
- 150 g/m²dealer
Works, but HVLP wastes less. recommended
Airmix (air-assisted airless)
- Consumption
- 150 g/m²dealer
For production runs; HVLP is handier on small carved parts. recommended
Airless
- Consumption
- 150 g/m²dealer
Large flat panels only; not advised on PU-foam décor — runs and pooling. recommended
Process and compatibility
- Substrate preparation
- PU foam: degrease thoroughly, wash off mould-release (wax/silicone) with solvent, light scuff with a grey pad, dedust. MDF: sand P180–P220 and dedust.catalog
- Goes over
- bare PU foam (ППУ) / MDF / polystone (полистоун)
- Goes under
- PPL series PU enamels (PPL20 RAL/NCS) / RAL enamel / PPS20 / CQS patina (over enamel) / PTL500 / ATL500 / ATL20
- Sanding · Grit
- P280–P320
- Sanding · After (h)
- 3–4
- Don'ts
- don't prime over unremoved mould-release on PU foam
- don't exceed 20 % hardener
- don't leave the hardener tin open (isocyanate + moisture)
- don't use the mix past its 3 h pot life
- don't leave the primer as a topcoat
Storage
- Shelf life
- not published (typically 12 months unopened)recommended
- Packaging
- 25 kgdealer
Safety: Two-pack solvent-borne PU; the hardener contains isocyanates. Spray only in an extracted booth with an A2P2 combination respirator (or supplied air), nitrile gloves and eye protection. Flammable — no flames or sparks.
Used in finishing systems
Mixed into
Sources
Value tags: “official”, “dealer”, “catalog”, “schedule” are Technocolor data; “workshop” is from our own datasheets; “recommended” is our engineering estimate (hover to see the reasoning).
- dealer card: properties, application, S50 20–30 % wt / 40–50 % vol, C20040 vs C20041 note, solids 76±1 %, viscosity 25±2 s ВЗ-8, pot life 3 h, touch 30 min, full 6 h, 25 kg, price
- dealer search confirms the single listing (2026-10-05)
- Technocolor 2019 catalogue: PPS40040–PPS40090 colour primers for PPU and MDF, solids 76 %, C20040/C20041 20 %, S50 20–25 %
- sibling PPS40042 card: finishing instruction (dry 3–4 h, P280–P320, PPL enamel, CQS patina, PTL500)
- official PPU schedule with PPS20040 : C20040 20 : S50 30
- official PPS40 page (series sibling): PC20042/PC20 20/25 % wt, 30/35 % vol; S50 20–30 % wt, 35–55 % vol; 150 g/m²
- hardener not listed at dealer
- official application-methods page: airless up to 200 bar (primers on large flat surfaces), airmix up to 20 bar fluid + 1–2 bar air
Not covered by the sources
- no official t-color.ru product page
- no TDS/SDS PDF found (web search budget exhausted; woodonline/lakokraska31 have no listing)
- dealer hardener row empty — 20 % comes from the 2019 catalogue only
- official % by volume for C20040/C20041
- which hardener the dealer pot life/drying figures were measured with
- drying/pot life with C20041 (only 'slower')
- density
- dust-free time (derived)
- gloss, hardness/elasticity figures (Erichsen etc.)
- shelf life, storage temperature
- whether C20040/C20041 are still produced or replaced by PC20042/PC20
- nozzle/pressure guidance (all derived)