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PL-SX-S

spray plaster

2025-12-17T13:56:52+00:00

Terrix® PL-SX-S
spray plaster 

Terrix® PL-SX-S is a ready-to-use plaster coat for machine-levelling interior walls 
and ceilings. For final levelling and smoothing of surfaces before painting. 
Its white colour and smooth surface allow for a reduction in the number of coats necessary to obtain a full decorative effect. When set and hardened, very easy to sand. 
Suitable for all typical mineral surfaces (such as concrete, cement, limestone, lime 
and gypsum plasters and plasterboards).
Formulated to maintain drying performance under elevated relative humidity.

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Benefits

Benefits to the customer:

  • Higher productivity outputs – up to 500 m²/man/day;
  • Due to the full vapour permeability of the Terrix® spray plaster, there is no need to wait for taping and jointing to be fully dry – the product can be applied on the same day;
  • Chemical bonding – the product is permanently connected to the substrate. There is no risk of cracking or flaking;
  • Chemical accelerated set – the product is less sensitive to weather conditions, meaning Terrix® spray plaster is ready for painting usually the next day, in extreme situations, after 3 days. Traditional skim coats and competitor’s spray coats during winter conditions need up to two weeks to be ready for painting;
  • Very clean application process – spray plaster is premixed and does not require water or mixing on site. Additionally, there is almost no overspray, which means very little cleaning after application;
  • The quality of the finish is much better than standard skim coat plastering or other systems. It delivers a very smooth, decorative surface quality not achievable with skim coat plastering;
  • The Terrix® Spray Plaster is fully compatible with Terrix® premium dispersion-silicate paint;
  • The chemical formulation of the product and its application prosperities allow for a more consistent finish leading to very little snagging;
  • Health and safety benefits:
    • Less operatives on site leading to reduced risk of accidents.
    • Reduced risk of falling from heights – the ability to spray up to 3m without scaffolding;
    • Very clean application process – spray plaster is premixed and does not require water or mixing on site. Additionally, there is almost no  overspray which means very little cleaning after application;
    • Reduced dust risk on site. If Terrix® Self-levelling spray plaster is used, no sanding is required;
    • No mist produced during spraying – safe for application without dusk masks.

Benefits to the applicator (subcontractor):

  • Lower labour cost due to the increased output. Up to 500 m²/man/day;
  • Ready to use – no mixing or water on site required;
  • Less skilled labour is required due to the ease of application. Terrix® spray plaster is extremely easy to spray, wipe and sand;
  • Minimising days on-site – Due to the products permeability and partly chemical set capabilities, the work process can be accelerated, in return releasing the areas ahead of the program for other trades;
  • Highly reduced snagging due to consistent finish;
  • Easy sanding – for the initial 20 days after application, the product is very easy to sand;
  • Silk consistency – very little snagging after application;
  • Chemical accelerated set – ready for painting usually the next day, in extreme situations, after 3 days.

Technical Data

Base binder: organic adhesive;
Colour: white to cream (due to natural fillers); may be tinted;
Maximum thickness of one layer: up to 2 mm;
Average coverage: approx. 1kg/m2 (applied on plasterboard);
Temperature of application (air and substrate): from +5 °C to +25 °C;
Maximum relative humidity: ≤ 70 %*;
Concrete substrate adhesion: ≥ 0.3 MPa;
Resistance to cracking: no cracks within the zone up to 50 mm from the thin wedge end;
Reaction to fire: class A1;
Packaging: 25 kg plastic bucket;
Storage: the product should be stored in its sealed packaging in a cool but frost-protected room;
Shelf life: 12-month shelf life from date of production (production date and batch no. printed on the side of the packaging). 

*Usage conditions:
The product can be used or applied in higher humidity levels; however, it is crucial to ensure that the product is not exposed to high humidity or condensation for repeated or prolonged periods in order to maintain its optimal strength and adhesion.
When applied in temperatures between +5  °C and +10  °C, the product’s drying time may be extended, 
and its performance can be influenced by factors such as humidity and ventilation.
Consider these environmental conditions during application and drying to achieve the best results.

CAUTION: Keep the product out of reach of children.

Application

Substrate preparation:

Apply only on a sound and clean substrate free from dust, grease, loose material, delamination and any biological or chemical contamination. The surface must be dry 
and must not show signs of algae or fungal growth.
If microbial contamination is present, clean the surface with a power washer. Afterwards apply an appropriate biocide according to its instructions for use. Remove any loose 
or unbonded layers such as flaking paint or weak plaster. Wash and degrease old or dirty surfaces with water and a suitable cleaning agent. Fill holes, cracks and irregularities according to good building practice.
Substrates coated with stable dispersion paint should be sanded and thoroughly dedusted before application.

Note: For newly applied mineral substrates such as cement-lime renders, cement renders 
or concrete, allow a minimum curing period of two weeks before using the product

Priming:

Prime absorbent substrates with Terrix® PR-UA before applying the spray plaster.
Ensure the primer is applied evenly and allowed to dry in accordance with its technical data sheet. 

Product preparation:

The product is ready to use. Do not dilute. Stir thoroughly before application to ensure a uniform consistency.

Application method:

Apply a thin, even layer of the product onto the substrate using an airless spray machine. The application thickness may vary from a film coat up to 2 mm. Use only equipment designed for spray-applied plasters such as the T-MAX by GRACO or high-performance paint sprayers including the GRACO Mark V, WAGNER HC 940 ESSP or the WAGNER SPEEFLO PT 6900 XLT DI.

During application the spray gun should be held perpendicular to the substrate.
Maintain a spraying distance of approximately 1.0–1.2 m when using the GRACO T-MAX,
or 0.5–0.6 m when using the GRACO Mark V.

For substrates with greater unevenness, the product may be applied in multiple layers. Apply each subsequent coat only after the previous one has fully hardened. Once fully dry, the surface can be sanded.


Sanding:

Use orbital sanders fitted with a dust extractor. Recommended sandpaper grit: 180–220.

Drying:

At 20 °C and 55 % RH the surface can be further processed after approximately 2 hours.
Drying time may vary depending on substrate absorbency, layer thickness and air circulation.

Application conditions:

Apply only when the air and substrate temperatures are between +5 °C and +25 °C.
Clean all tools with water immediately after use.

Airless spraying:

Manufacturer

Device

Filter

Pressure 

Nozzle

GRACO

T-MAX 506 

18

50

651

GRACO

Mark V 

n/a

230

531

WAGNER

HC 940 ESSP 

n/a

230

0.025”

(WAGNER) SPEEFLO 

SPEEFLO PT
6900 XLT DI 

n/a

230

0.025”

Comaprison

property

traditional skim coat

PCC TERRIX® PL-SX-S spray plaster coat

Notes
1 Type of product powder mixed with water ready to use very clean vs skim, does not require water
2 Application manual spray
 3 Speed of application slow very fast 2×2 bed apartment per day/ one person
 4 Processing wet easy sand no mechanical sanders required
 5 Drying evaporation chemical accelerated suitable for winter application
 6 Application time slow very fast up to 500 m²/day per person
 7 Flatness depends very high excellent surface quality
8 Price low low comparable price to skim systems
 9 Possibility to tint none can be tinted

Case study

Terrix PL-SX Spray Plaster

December 8th, 2022|Case study|

Terrix PL-SX Spray Plaster Ready-to-use plaster coat for machine levelling of interior walls and ceilings. ⋅ Chemically bonded product ⋅ No risk of cracking or flaking ⋅ Chemical accelerated set

Read More

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Q&A

Terrix® PL-SX-S is a revolutionary, ready-to-use spray plaster designed for machine-levelling interior walls and ceilings.

The benefits of using Terrix® PL-SX-S for applicators or subcontractors are numerous, providing advantages in terms of efficiency, cost-effectiveness, and ease of use:

  1. Increased productivity: With the potential to achieve up to 500 m²/man/day, applicators can complete projects faster, which can lead to more contracts and higher revenues.
  2. Reduced labour costs: The ease of application and high output rates mean fewer workers are needed on-site, resulting in lower labour costs.
  3. Ready-to-use product: Terrix® PL-SX-S comes pre-mixed, eliminating the need to mix or add water on site, streamlining the application process.
  4. Less skilled labour required: The product is easy to spray, wipe, and sand, reducing the need for highly skilled labour and making it more accessible to a broader range of workers.
  5. Faster project completion: The product’s permeability and chemical accelerated set capabilities to enable a quicker work process, allowing subcontractors to finish projects ahead of schedule and move on to the next one.
  6. Reduced snagging: The consistent finish provided by Terrix® PL-SX-S results in minimal snagging, saving time and effort during the final stages of a project.
  7. Easy sanding: For the initial 20 days after application, the product is very easy to sand, making it more user-friendly for applicators.
  8. High-quality finish: Terrix® PL-SX-S delivers a smooth, decorative surface quality that is difficult to achieve with traditional skim coat plastering, leading to more satisfied customers and potentially more business.
  9. Faster drying times: With its accelerated chemical set, the product is typically ready for painting the next day, allowing subcontractors to continue working on other aspects of the project without unnecessary delays.

Overall, Terrix® PL-SX-S offers applicators and subcontractors a convenient, cost-effective, and high-performance solution for interior wall and ceiling plastering that can significantly improve their workflow and results.

The benefits for customers include:

  • Higher productivity outputs (up to 500 m²/man/day).
  • Faster readiness for painting.
  • Chemical bonding for reduced risk of cracking or flaking, clean application process.
  • Superior finish quality.
  • Compatibility with Terrix® premium dispersion-silicate paint.
  • Reduced snagging.

Yes, Terrix® PL-SX-S spray plaster can be applied over well-set dispersion coatings. Before application, the existing paint should be sanded and dedusted before application to ensure proper adhesion. Also, makere the substrate is clean, sound, and free from loose materials or contamination.

Terrix® PL-SX-S spray plaster is suitable for use in environments with temporary humidity increases due to its vapour permeability. However, it is essential to ensure the product is not exposed to high humidity or condensation for repeated or prolonged periods to maintain its optimal strength and adhesion. Considering environmental conditions during application and drying, you can still achieve the best results in spaces with temporary humidity fluctuations.

The drying time for Terrix® PL-SX-S spray plaster depends on several factors, including temperature, humidity, and air circulation. The product can typically be subject to further processing after approximately 12 hours at 20°C and 55% relative humidity. However, in extreme situations or different environmental conditions, the drying time may extend to 3 days before it is ready for painting.

Terrix® PL-SX-S has several key features, including chemical bonding, ready-to-use formulation, vapour permeability, one-coat application, compatibility with dispersion paints and plasterboards, easy snagging, and a clean application process.

Yes, Terrix® PL-SX-S is compatible with most plasterboards on the market. In case of any doubts, please contact our technical department.

A 25kg tub of Terrix® PL-SX-S provides coverage of approximately 25m2 when applied on plasterboard, as its average coverage is 1 kg/m2.

Yes, Terrix® PL-SX-S is compatible with most plasterboards on the market. However, for substrates incompatible with the product, you can contact technical support for advice on other Terrix® spray-plaster products, such as PL-HB-S (high-bond spray plaster for difficult substrates) or PL-FS-S (fast-set spray plaster).

Terrix® PL-SX-S offers easy snagging due to its consistent finish, silk consistency, and reduced need for additional repairs or corrections after application.

The application process of Terrix® PL-SX-S is very clean, as the product is premixed and does not require water or mixing on site. Additionally, there is almost no overspray, which means minimal cleaning is needed after application.

Terrix® PL-SX-S provides a very high finish quality compared to tape & joint and skimming methods. The product delivers a very smooth, decorative surface that is not achievable with traditional skim coat plastering. The spray plastering method allows for a more consistent and even application, resulting in a superior visual effect for walls. This advanced technique ensures fewer imperfections, leading to a more aesthetically pleasing and professional result. Spray plastering with Terrix® PL-SX-S offers the best possible finish for your walls, making it the preferred choice for achieving high-quality interior surfaces.

Yes, Terrix® PL-SX-S allows for start/stop application, offering flexibility during the application process.

Terrix® PL-SX-S spray plaster offers several health and safety advantages during the application process:

  1. Fewer operatives on site: With a higher productivity rate, fewer workers are required on site, leading to a reduced risk of accidents and improved overall safety.
  2. Reduced risk of falling from heights: The ability to spray up to 3 meters without the need for scaffolding minimizes the risk of falls, enhancing the safety of applicators during the process.
  3. Cleaner application process: Terrix® PL-SX-S is a premixed spray plaster that does not require water or mixing on site. The application produces minimal overspray, resulting in less cleaning after application and a more organized work environment.
  4. Decreased dust risk: The spray application method generates less dust compared to traditional plastering techniques. If Terrix® Self-levelling spray plaster is used, no sanding is required, further reducing dust risk on site.
  5. Improved air quality: The spray plaster application process does not produce a mist, making it safer for applicators without the need for dust masks, and contributing to a healthier work environment.

These health and safety benefits make Terrix® PL-SX-S spray plaster a more efficient and safer alternative to traditional plastering methods, ensuring a better working experience for applicators and a more secure construction site overall.

Terrix® PL-SX-S spray plaster is typically ready for painting the next day. However, in extreme situations, it may take up to 3 days. The actual drying time can be influenced by factors such as temperature, humidity, and ventilation.

Terrix® PL-SX-S is suitable for a wide range of typical mineral surfaces, including concrete, cement, limestone, lime and gypsum plasters, and plasterboards.

To apply Terrix® PL-SX-S, use specialized tools designed for spray plaster application, such as T-MAX by GRACO, and powerful devices for paint application, like MARK V by GRACO or SPEEFLO PT6900 XLT DI by WAGNER.

We are recommending the use of GRACO as the preferred type of equipment.

Terrix® PL-SX-S has a 12-month shelf life from the date of production. The production date and batch number are printed on the side of the packaging.

Terrix® PL-SX-S should be stored in its sealed packaging in a cool but frost-protected room to ensure its optimal performance and shelf life.

Yes, Terrix® PL-SX-S can be applied on substrates covered with a well-set dispersion coating. However, the coating should be sanded and dedusted before the product application to ensure proper adhesion.

For sanding Terrix® PL-SX-S spray plaster, it is recommended to use orbital sanders with an extractor and sandpaper with a grit of 180-220.

If microbial contamination is present on the substrate, clean it with a power washer and apply a biocide solution according to the product manual to remove the contamination before applying Terrix® PL-SX-S spray plaster.

For newly completed mineral substrates, such as cement-lime renders, cement-renders, and concrete substrates, a minimum of a 2-week curing period is required before applying Terrix® PL-SX-S spray plaster.

Absorbent substrates should be primed with Terrix® PR-UA before applying Terrix® PL-SX-S spray plaster to ensure proper adhesion and optimal results.

Yes, if more significant unevenness is present on the substrate, Terrix® PL-SX-S can be applied in multiple layers. However, it is essential to let the previous layer harden before applying the next layer. Then, once the surface is dry, it can be sanded to achieve a smooth finish.

Yes, Terrix® PL-SX-S is available in white, but it can be tinted with compatible tinting agents to achieve the desired color.

For sanding Terrix® PL-SX-S, it is recommended to use orbital sanders with an extractor and sandpaper with a grit of 180-220.

Yes, Terrix® PL-SX-S can be applied over existing paint, provided that the paint is well-set, sanded, and dedusted. Loose or flaking paint should be removed before applying the spray plaster.

Terrix® PL-SX-S has a reaction to fire classification of class A1, indicating it is non-combustible and does not contribute to fire.

After finishing work with Terrix® PL-SX-S, all tools should be cleaned with water to remove any remaining product.

Yes, Terrix® PL-SX-S is specifically designed for the final levelling and smoothing of surfaces before painting, providing a high-quality, smooth finish.

The maximum thickness of one layer of Terrix® PL-SX-S is up to 2 mm. If more significant unevenness is present, the material should be applied in multiple layers after the previous layer hardens.

The adhesion/cohesion value of Terrix® PL-SX-S on drywall is greater than 0.25 N/mm2.

Terrix® PL-SX-S delivers a smoother, more consistent decorative surface quality than traditional skim coat plastering. In addition, its application properties allow for a higher finish quality compared to tape and joint or skimming methods.

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