LKR181
LKR181 White acrylic enamel for exterior use (30 gloss)
Two-pack white acrylic enamel for exterior timber. Officially: excellent sag resistance on verticals, good hiding, elasticity and non-yellowing. Cured with LNB99 (hardener for acrylic lacquers) at 40 %. It is the white counterpart of the clear exterior lacquer/converter LGA180.
- windows, doors, shutters and other exterior timber joinery
- garden furniture, gazebos, fences, play equipment — white opaque finish
Mix calculator
Ask about LKR181
Answers are based on the LKR181 data and the products it mixes with.
Mixing matrix
- LNB99Hardener% by weight: 40 %official% by volume: 40 %official
always
Fixed ratio: 100 parts enamel + 40 parts LNB99, by weight or by volume. Add hardener first, stir well, then thin. LNB99 is listed by the dealer as 'hardener for acrylic lacquers'. Close the hardener tin straight away — it is moisture-sensitive.
- LZC1051Thinner% by weight: 10–20 (typ. 15) %official% by volume: 10–20 (typ. 15) %official
normal shop 18–25 °C, verticals, small parts
Officially 'PU thinner', evaporation rate not published; in the Milesi range it is the normal/medium one. Default 15 % is the middle of the official range (our pick).
- LZC8643Thinner% by weight: 10–20 (typ. 15) %official% by volume: 10–20 (typ. 15) %official
heat above ~25 °C, large flat panels, when you need more flow-out
Officially the 'slow PU thinner' for PU and acrylic materials. Longer open time means more dust pick-up and more sag risk on verticals.
| Role | Material | % by weight | % by volume | When |
|---|---|---|---|---|
| Hardener | LNB99 | 40 %official | 40 %official | alwaysFixed ratio: 100 parts enamel + 40 parts LNB99, by weight or by volume. Add hardener first, stir well, then thin. LNB99 is listed by the dealer as 'hardener for acrylic lacquers'. Close the hardener tin straight away — it is moisture-sensitive. |
| Thinner | LZC1051 | 10–20 (typ. 15) %official | 10–20 (typ. 15) %official | normal shop 18–25 °C, verticals, small partsOfficially 'PU thinner', evaporation rate not published; in the Milesi range it is the normal/medium one. Default 15 % is the middle of the official range (our pick). |
| Thinner | LZC8643 | 10–20 (typ. 15) %official | 10–20 (typ. 15) %official | heat above ~25 °C, large flat panels, when you need more flow-outOfficially the 'slow PU thinner' for PU and acrylic materials. Longer open time means more dust pick-up and more sag risk on verticals. |
Percentages are per 100 parts of component A.
Characteristics
- Gloss
- 30 GUdealer
- Thixotropy
- excellent sag resistance on verticalsofficial
- Hiding
- good hiding powerofficial
- Elasticity
- elasticofficial
- Lightfastness
- resists yellowingofficial
- Weather resistance
- for exterior userecommended
- Drying · Touch-dry
- 120 minrecommended
- Drying · Sand or stack
- 24 hrecommended
- Drying · Full cure
- 24 hrecommended
- Drying · Conditions
- 20 °C, ~65 % RH
- Hardener solids %
- 32 %dealer
Colours
- LKR181 · white
Application
HVLP
- Consumption
- 120 g/m²official
- Recoat
- without sanding while the film is still short of touch-dry (roughly within 2 h); if you miss that window, wait 24 h and sandrecommended
- Sanding between coats
- P320–P400 after 24 hrecommended
Stir the white base thoroughly from the bottom before adding hardener — the pigment settles. Strain the mix (125–190 µm).
Conventional spray
- Consumption
- 120 g/m²official
Lower transfer efficiency (up to ~40 % per the methods page) — expect to use more enamel.
Airmix (air-assisted airless)
- Consumption
- 120 g/m²official
Per the Technocolor methods page, airmix suits topcoats better than airless.
Airless
- Consumption
- 120 g/m²official
For big simple flats (fences, boards). On furniture and windows the finish is worse than airmix/HVLP.
Process and compatibility
- Substrate preparation
- Timber at 12–15 % MC, clean and resin-free. Outdoors, treat with a protective preservative first (for LGA180 the dealer recommends XWC 30 Xilocrom), then primer or a first enamel coat. Sand bare wood P150–P180.recommended
- Goes over
- XWC30 / LGA180
- Sanding
- Between coats P320–P400 after 24 h. Don't sand or polish the final coat — a 30-gloss film will go patchy.recommended
- Don'ts
- don't change the hardener amount — 40 % only
- don't thin past 20 %: you lose sag resistance and hiding
- don't apply onto wet or cold timber, or when rain/dew is due
- don't keep mixed material overnight
Storage
Safety: Solvent-borne 2K with an isocyanate hardener: spray only in an extracted booth, wearing an A2P3 respirator (or air-fed mask), gloves and eye protection. Flammable. (General advice, not from an SDS.)
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).
- official page: properties (verticality, hiding, elasticity, non-yellowing), spray 120 g/m², LNB99 40 % w/w & v/v, LZC1051/LZC8643 10–20 % w/w & v/v
- dealer search card: 'LKR181 Эмаль акриловая белая (30гл) для наружных работ', not available to buy; product URL redirects to a category
- dealer LNB99: 'Отвердитель для акриловых лаков', solids 32 ± 1 %, Milesi, 1/2.5/5 L
- official LZC1051 PU thinner
- official LZC8643 slow thinner for PU and acrylic
- official page of sister LGA180 (same LNB99 40 %, thinners 10–30 %, 140 g/m²) — basis for derived values
- dealer LGA180: converter to be tinted with KMT pastes, gloss 25 ± 2, solids A 39 ± 1 %, viscosity A 32 ± 2 (unit not stated), touch 2 h, sand/full 24 h, XWC 30 pre-treatment, exterior uses — basis for derived values
- Milesi LGA 190 TDS (a different product: 2K PU parquet finish, LNB 190 hardener 50 %, same LZC 8643/1051 thinners) — pot life 2 h, dust-free 20 min, touch 40 min, storage 18–25 °C, shelf life 8 months; used only as a reference for derived values
- Technocolor application methods page (airmix, airless, transfer efficiency)
Not covered by the sources
- No technical data sheet (TDS) found for LKR181 (probed Milesi/IVM TDS URL pattern; web search budget exhausted)
- Dealer product page withdrawn (301 → category) — no 'Все технические характеристики' block: part-A solids, viscosity, density unknown
- Pot life, dust-free/touch/sand/full drying times unpublished — derived from sister LGA180 and, as a reference only, the Milesi LGA 190 TDS
- Mixed solids and dry film thickness per coat unknown
- Packaging/pack sizes of the enamel itself, shelf life unknown
- Whether LKR181 can be tinted (KMT pastes) is not stated
- Not in any Technocolor catalog transcript or official finishing schedule (information/technology) — no schedule ratios
- Brush/roller application not listed officially (spray only)
- Evaporation rate of LZC1051 not published