find your coatings consultants
Find and contact a coatings consultant near you.

Series 256 | ExcellaThane

Generic Type Modified Aliphatic Polyaspartic
Common Usage An extremely fast-curing, multi-purpose and finish coat resin with low temperature cure capability. Used to build aggregate, colored quartz or decorative flake filled floor topping systems. It can also be used as a clear or pigmented finish coat over systems built using Series 256 or systems built using epoxy, or polyurethane modified concrete floor toppings that have been fully broadcast with aggregate, colored quartz or colored flake. Series 256 will provide protection against impact, abrasion and mild chemicals, has excellent gloss and color retention, and resistance to yellowing. This low VOC, 100% solids urethane exhibits low odor characteristics allowing for use near occupied spaces.
Colors Supplied as a clear coat, may be field tinted with available Series 821 color pack in the 16 standard StrataShield colors and limited custom colors. Color packs are sold separately. Contact Tnemec for availability. Note: Certain colors may require multiple coats depending on the method of application and finish coat color.
Finish Gloss. The texture of the finished surface will depend on the film thickness and number of coats applied.
Note: Application as a clear topcoat may lead to a cloudy appearance if the product is overworked, applied too thick, or applied too far into its pot life. This product has a short working time. Caution should be taken to apply the material immediately after mixing and to not overwork the product when rolling.
Surfacer/Filler/Patcher Series 215, or Series 201, 256 or 257 mixed with select aggregate fillers may be used for small patches or crack repairs. Certain high-early strength, cementious repair mortars are also acceptable for deeper filling and patching. For more extensive repairs and additional information, contact your Tnemec representative or Tnemec Technical Services.
Primers Self-priming or Series 241, 242, 245. Note: When applying over standard epoxies or epoxy primers the epoxy is typically fully broadcast with aggregate, colored quartz or colored flake or mechanically abraded using 60 grit sandpaper or coarser. Note: When building systems using 222, 224, 233, 237, 238, 241, 242 and 245 refer to applicable product data sheet for appropriate primer/intermediate selection.
Intermediate Series 222, 224, 233, 237, 238, 241, 245, 256, 257. Note: If Series 222, 224, 233, 237, 238, 241 or 245 is used as an intermediate coat, aggregate, colored quartz, or decorative flake is typically broadcast to refusal into the intermediate coat prior to topcoating with 256.
Topcoats Series 247, 248, 256, 257. Note: Before applying Series 247/248 over coatings with a smooth, glossy surface, thoroughly scarify the Series 256 using a power sander and 100 grit sandpaper, No. 60 mesh sanding screen or a coarse stripping pad to eliminate surface tension. Failing to uniformly degloss the entire surface or thoroughly clean all surface contamination may lead to fisheyes and/or poor adhesion. Sanding or scarification is not required when topcoating textured coatings (i.e. aggregate or colored quartz broadcast to refusal) with Series 247/248 if maximum recoat time of the previous coating is met.
Volume Solids 100% (mixed)
Recommended DFT Primer: 6.0 to 12.0 mils (150-305 microns) per coat.
Broadcast: 1/16" to 1/8" (Double broadcast or slurry broadcast required to achieve 1/8")
Grout coat: 8.0 to 16.0 mils (203 to 406 microns)
Intermediate or Topcoat: 8.0 to 16.0 mils (203 to 406 microns)
Note: Do not exceed 20 mils (500 microns) dry film thickness.
Curing Time
TemperatureTo TopcoatLight TrafficPlace in Service
75°F (24°C) & 50% R.H. 2 to 3 hours minimum, 48 hours maximum•3 to 5 hours•6 to 12 hours•
•For applications at 75°F and 50% relative humidity, if more than 48 hours has elapsed between coats of Series 256, the surface must be mechanically abraded before recoating. For applications between 70% and 80% relative humidity, if more than 36 hours has elapsed between coats of Series 256, the surface must be mechanically abraded before recoating. Curing time varies with surface temperature, air movement, humidity and film thickness. Relative humidity greatly impacts the working time, cure speed and recoat window of Series 256. Working time and the recoat time will decrease and cure rates increase when applying in higher humidity conditions. Do not apply if relative humidity is greater than 80%.
Volatile Organic Compounds Parts A & B:
Unthinned: 0.09 lbs/gallon (11 grams/litre)
Thinned 5%: 0.47 lbs/gallon (56 grams/litre)
HAPS 0.0 lbs/gal solids
Theoretical Coverage 1,604 mil sq ft/gal (39.4 m²/L at 25 microns). See APPLICATION for coverage rates.
Number of Components Liquids—Two: Part A and Part B (2 parts A to 1 part B by volume)
Optional Field Colorant: Series 821 is sold separately and available in pint containers in 16 standard StrataShield colors and limited custom colors.
1
Category
2
Chemical Name(required)
3
Concentration
4
What is this?

Note: Not Recommended (NR), Not Tested (NT), Please Call (PC)

 

Chemical Recommended Use - What is this?

The chemical resistance data listed on this website should only be used for general reference purposes. Substrates, temperatures, chemical combinations, and other variables can affect the performance of a coating in chemical exposure. Please contact your local to finalize the most appropriate system for your project.

Click the following button to download a PDF of the list of chemicals below.

1 Product is NOT suitable for direct or indirect food contact. Intended Use and temperature information relates    to product's performance capabilities only.

2 Product is suitable for direct or indirect food contact. Reference the product data sheet for more information.


Recommended Use
Chemical Occasional Contact Frequent Contact Secondary Containment Cargo Immersion Immersion Service

1 Product is NOT suitable for direct or indirect food contact. Intended Use and temperature information relates    to product's performance capabilities only.

2 Product is suitable for direct or indirect food contact. Reference the product data sheet for more information.

  • Color cards, swatches and fan decks are offered at no charge, by request , for more accurate color selection. Expert custom color matching is also available by contacting your Tnemec Coatings Consultant .
  • Deeptone colors may be more expensive than lighter colors. Please contact your Tnemec Coatings Consultant to verify product/color availability and pricing.
These digital colors should not be used to finalize your color selection. Please read our disclaimer . Use the color swatch tool on the left to request official color swatches.

Color Swatch Packet

Request another

(maximum 6 color swatches)

You haven't added any color swatches to your packet. Select some colors now by clicking a color above and then clicking the 'Request a Swatch' button on the color.

The products listed below are not exact equivalents. They are only products that you may consider as alternatives in a general sense. Substrate type, condition, temperatures, surface preparation, primer/topcoat selection and intended use are just a few factors that will affect product selection. Please contact your local Tnemec Coatings Consultant for product recommendations.

This ProductModified Aliphatic Polyaspartic

GET THE LATEST NEWS AND UPDATES BY EMAIL FROM TNEMEC

support documents