KLB-SYSTEM POLYURETHAN PU 880 Non-pigmented 2-component sealer for matt surfaces PU 881 Pigmented 2-component polyurethane sealer for matt surfaces

Mixing ratio PU 880 A : B = 4 : 1 Parts by weight A : B = 100 : 23 Parts by volume PU 881 A : B = 5 : 1 Parts by weight A : B = 100 : 18 Parts by volume Processing time Temperature 10 °C / 50 °F 20 °C / 68 °F 30 °C / 86 °F Time 70 min. 60 min. 35 min. Processing temperature Minimum 10 °C / 50 °F (room- and floor- temperature) time Temperature 10 °C 20 °C 30 °C (Accessibility) Time 24 - 36 hrs. 18 - 24 hrs. 14 - 18 hrs. Curing 2 - 3 days for mechanical load at 20 °C / 68 °F 7 days for chemical resistance at 20 °C / 68 °F Further coatings After curing, at the earliest after 18 - 24 hours, but not longer than 48 hours at 20 °C / 68 °F Consumption Approx. 0.120 - 0.180 kg/m² for each application Layers Usually 1 coat on fresh coatings Thickness of layers 0.15 - 0.18 mm for each wet application Packaging Combi-Bucket 5 kg (PU 880 only), Combi-Bucket 10 kg, Hobbock-Combi 30 kg Colours PU 880 Matt, non-pigmented PU 881 Matt, pigmented Shelf life 12 month (originally sealed)

Usage and Properties KLB-SYSTEM POLYURETHAN PU 880 and PU 881 are made of high-quality raw materials. The products are re- KLB-SYSTEM POLYURETHAN PU 880 and PU 881 are sistant to yellowing and are predominantly used for areas 2-component sealers with a matt surface finish, contains with decorative requirements. In industrial areas with fork- solvents. KLB-SYSTEM POLYURETHAN PU 880 is lift truck traffic, thin seal-coats may wear off as a result non-pigmented, KLB-SYSTEM POLYURETHAN PU 881 of braking and it should, therefore, be tested in individual is available in different colour tones. Both products contain cases as, to whether the use of the sealer is reasonable. solvents and are subject to the hazardous goods regula- tions. The product offers resistance to diluted acids and alkalis, salt solutions and short-term exposure to solvents. Poly- Both products are suitable for even, matt commercially urethane sealing products do not have adequate resist- and industrially used surfaces. The sealers are suitable ance to tyres and long exposure may leave an imprint. for polyurethane and coatings. Ensure the Epoxy resin sealers like KLB-SYSTEM POLYURETHAN product combination possibilites. Yellowing polyurethane PU 705 E, are recommended. coatings should be coated with a covering sealer like KLB-SYSTEM POLYURETHAN PU 881.

Edition 08/2017 PU 880 / PU 881 – Page 1 of 4 Product Features Polyurethane coating with decorative chips (flakes)

zz zzmatt surface finish Apply one of the recommended KLB-Base Coats, zzsolvent based like e.g. EP 50 and scatter with fire-dried quartz sand zzeven optical appearance 0.3/0.8 mm. zz zzvery economical – due to low consumption Apply a scratch coat using EP 50 / KLB-Mischsand zzresistant to yellowing 2/1, mixing ratio 1 : 0.8 parts by weight. zz zzfree of deleterious substances against varnish Apply a base layer using PU 410. zzScatter with partiColor®-chips (flakes), size 3. zzApply the non-pigmented sealer PU 880 in criss-cross Testing strokes.

External test certificates are available: Substrate zzSlip resistance grade R11 possible, according to DIN 51130 and BGR 181. The substrate to be coated has to be dry and free of any Note: Please ask for the tested system structure! type of contamination. Usually sealing is the finish layer when coating. Please note that the previous coat hasn’t been soiled already. The ideal point of time for sealing Area of Application is achieved when the previous coating has built an ade- quate film, but hasn’t cured completely yet. When using zzPU 880 and PU 881 are suitable as matt sealer on the usual systems curing is achieved after 18 hours at the epoxy resin coatings in commercially and industrially earliest and after 48 hours at the latest. When sealing at used areas. a later point of time conduct a trial and test the substrate zzUse as pigmented matt sealer on polyurethane coat- for adequate adhesion. Clean and prepare older substrate ings, like PU 420, PU 410, and so on. with a suitable mechanical method where required. When zzAs finish sealer on decorative coatings with flakes. sealing older synthetic resin surfaces test for adequate ad- hesion. It is recommended to conduct a trial. Apply at least 2 coats for an even coverage when changing colours. Build-up of Coats

Mortar coating with a smooth surface Mixing zzApply one of the recommended KLB-Base Coats, Combi trading units will be supplied in the correctly meas- like e.g. EP 50 and scatter with fire-dried quartz sand ured mixing ratio. Component A has sufficient volume for 1 - 2 mm. the entire unit. Decant the hardener B completely into the zzApply the decorative or industrial mortar using resin A. Blend with a slow speed mixer (200 - 400 r/pm) for EP 150. at least 2 - 3 minutes, for a material that is homogeneous zzFor a smooth coatings use EP 174 / EP 175 in and free of streaks. For partial withdrawals make sure to 2 - 3 coats as pore-sealer or EP 174 and EP 179 weigh out in the precise mixing ratio. To avoid mixing er- in combination. rors it is recommended to empty the resin/hardener-mix- zzUse PU 880 as finish sealer. Apply with a solvent- ture into a clean container and mix briefly once again. resistant velour roller using criss-cross strokes. Processing time max. 1 hour at 20 °C / 68 °F Single-coloured, smooth polyurethane coating (see chart “Processing time”). Note: End of pot-life is not visible! zzApply one of the recommended KLB-Base Coats, like e.g. EP 50 and scatter with fire-dried quartz sand 0.3/0.8 mm. Processing / Handling zzApply a scratch coat using EP 50 / KLB-Mischsand 2/1, mixing ratio 1 : 0.8 parts by weight. Process right after mixing just like with all other reactive zzApply a base layer using PU 420 or PU 421. resin products. Apply with a lint-free and solvent-resistant zzUse PU 881 as covering sealer. Stay within the colour roller. Divide working areas to avoid duplicate application tone. Use criss-cross strokes. and overlaps. Duplicate applications and overlapping may cause an uneven appearance and streaks. Sealers con- taining solvents should be processed at the recommended temperature range and without insolation or draft.

Page 2 of 4 – PU 880 / PU 881 Edition 08/2017 For larger areas it is recommended that 2 or more people Storage apply the material. One or more people apply the material in one direction another person distributes the fresh mate- Store in dry and at frost-free conditions. Ideal storage tem- rial in a 90°-angle. Use a 50 cm roller for re-rolling on larg- perature is 10 - 20 °C / 50 - 68 °F. Before application, bring er areas. Roller should be coated with the material. Use to a suitable working temperature. Tightly re-seal opened only for distribution not for application. Work in an aligned containers and use the contents as quickly as possible. rythm. Do not carry out the cross coat too late. On larger Note the directives for storage for products containing sol- areas use a roller for the cross coat. Wear stump nail- or vents. soccer-shoes. Always work “fresh-in-fresh” and watch for an even distribution. Avoid ponding otherwise blooming may occur. Special Remarks

Important: When using epoxy resin or polyurethane coa- The product is subject to the hazardous material-, oper- tings, allow adequate curing before applying the finish ational safety-, and transport-regulations for hazardous sealer. At room temperature, wait at least 18 hours. Lon- goods. Refer to the DIN-Safety Data Sheet and the infor- ger waiting periods may be necessary with a maximum mation on the labelled containers! of 48 hours. The application of PU 880 / PU 881 is re- commended for the following epoxy coatings: EP 99, EP GISCODE: PU 50 100 VS, EP 174, EP 175, EP 175 Spezial, EP 200 VF, EP 213, EP 220. When coating unidentified coating systems Indication of VOC-Content: conduct pre-trials for testing the adhesion. (EG-Regulation 2004/42) Maximum Permissible Value 500 g/l (2010,II,j/lb): Floor- and air-temperature must not fall below 10 °C / Ready-for-use product contains < 500 g/l VOC. 50 °F and humidity must not exceed 75 %. The diffe- rence in floor- and room-temperature must be less than 3 °C / 37.4 °F so the curing will not be disturbed. If a dew- point situation occurs regular curing may malfunction and PU 881 spotting may occur. Exposure to water should be avo- ided within the first 7 days. Curing time applies to 20 °C / 68 °F. Lower temperature may increase, higher tempe- rature may decrease the curing and processing time. If working conditions are not complied with,deviations in the described technical properties may occur in the end pro- duct. KLB Kötztal Lacke + Beschichtungen GmbH Cleaning Günztalstraße 25 FRG-89335 Ichenhausen The following self-levelling coatings can be sealed with 13 PU 880 or PU 881: PU881-V1-022013 EP 200 VF, EP 202, EP 213, EP 213 RAPID, EP 216 Uni- DIN EN 13813:2003-01 versal, EP 216 RAPID, EP 220, PU 405, PU 410, PU 420, Synthetic resin screed mortar PU 421, PU 425 Comfort. DIN EN 13813: SR-B1.5-AR0.5-IR6

With other coatings adhesion must be tested. The surface Fire behaviour Efl-s1 adhesion can anyway be improved by grinding. Emission of corrosive SR substances Suitable Coatings Wear resistance BCA AR 0.5 Adhesive tensile strength B 1.5 To remove fresh contamination and to clean tools use thin- ner VR 28 immediately. Hardened material can only be Impact resistance IR 6 removed mechanically.

All stated information is based on our experience and technical preparation. We guarantee the correct and proper quality of our products. We do not assume any responsibility for the work not carried out by us, since we have no influence on the processing or processing conditions. We recommend on-site trials to be conducted. With appearance of this new KLB product information all prior information loses validity. The updated version is avai- lable on our website www.klb-koetztal.com. In addition, our „General Terms and Conditions“ apply.

Edition 08/2017 PU 880 / PU 881 – Page 3 of 4 PU 880 PU 880

KLB Kötztal Lacke + Beschichtungen GmbH 1119 Günztalstraße 25 KLB Kötztal Lacke + Beschichtungen GmbH FRG-89335 Ichenhausen Günztalstraße 25 13 FRG-89335 Ichenhausen PU880-V1-022013 13 DIN EN 13813:2003-01 PU880-V1-022013 Synthetic resin screed mortar DIN EN 1504-2:2004 DIN EN 13813: SR-B1.5-AR0.5-IR16 Surface protection products-coating Fire behaviour Bfl-s1 DIN EN 1504-2: ZA.1d,ZA.1f,ZA.1g Emission of corrosive SR substances Abrasion resistance complied with Wear resistance BCA AR 0.5 CO2-permeability SD > 50m Adhesive tensile strength B 1.5 Water vapour permeability Class III Capillary water absorbtion Impact resistance IR 16 < 0.1 kg/m²*h0.5 and water permeability Resistance to increased complied with chemical excavation Resistance to impact Class II Tear-test for adhesive > 1.5 N/mm² strength evaluation

Fire behaviour Bfl-s1

Technical Data*

PU 880 PU 881 Viscosity Components A + B 200 - 400 200 - 400 mPas DIN EN ISO 3219 (23 °C / 73.4 °F) Density Components A + B 1.10 1.15 kg/l DIN EN ISO 2811-2 (20 °C / 68 °F) Solid content > 60 > 60 % KLB-Method Water absorption < 0.2 < 0.2 weight-% DIN 53495 Abrieb (Taber Abraser) < 50 < 55 mg ASTM D4060 Brightness (85°) 10 - 20 10 - 20 - DIN 67530

(* Values achieved in sampling are average values. Variation in product specification is possible.)

Günztalstraße 25 Phone +49 (0) 8223-96 92-0 www.klb-koetztal.com Lacke + Beschichtungen GmbH FRG-89335 Ichenhausen Fax +49 (0) 8223-96 92-100 [email protected]

PU 880 / PU 881 – Page 4 of 4 Edition 08/2017