| Código SH | 937921 |
| Nome Do Produto | CELVOLIT 1318 Emulsão VAE para revestimentos impermeabilizantes de cimento polimérico |
| Tipo De Polímero | Emulsão de Copolímero de Acetato de Vinil-Etileno (VAE) |
| Aparência | Líquido branco leitoso |
| Viscosidade Mpa S | 2000-3000 |
| O Ph | 4.5-6.0 |
| Tamanho Da Partícula Um | 0.5-2.0 |
| De Acetato De Vinilo Residual | <0,1 |
| Filme Flexibilidade | Flexível e resistente |
| Resistência à água | Bom |
| Compatibilidade Cimento | Excelente |
| Estabilidade Ao Congelamento | Não estável, proteja do congelamento |
Como fábrica credenciada CELVOLIT 1318 Emulsão VAE para revestimentos impermeabilizantes de cimento polimérico, aplicamos protocolos de qualidade rigorosos - cada lote é submetido a testes rigorosos para garantir padrões de eficácia e segurança consistentes.
| Embalagem | Fornecido em tambores de aço revestidos de polietileno de 200 kg ou bolsas IBC de 1.000 kg, selados para evitar a entrada de umidade. |
| Carga de contêiner (20' FCL) | Um recipiente FCL de 20 pés carregado com Emulsão CELVOLIT 1318 VAE, paletizado, protegido e estabilizado para transporte seguro de revestimento de cimento polímero à prova d 'água. |
| Envio | CELVOLIT 1318 VAE Emulsão navios como um líquido não perigoso à base de água em tambores selados, bolsas IBC ou tanques a granel. Proteja do congelamento e do calor excessivo; armazene entre 5 '35 ° C. Mantenha os contêineres na vertical, bem fechados e longe da luz solar direta. Assegure ventilação adequada durante a carga e descarga para manter a integridade do produto. |
| Armazenamento | Armazene CELVOLIT 1318 VAE Emulsion em recipientes originais bem fechados em uma área fria, seca e bem ventilada. Proteja da luz solar direta, geada e temperaturas acima de 30 ° C. A temperatura ideal de armazenamento é de 5 30 ° C. Evite contaminação e congelamento. Sob condições adequadas, a vida útil é normalmente de 6 meses a partir da data de fabricação. Mexa antes de usar. |
| Prazo de validade | Conservar no recipiente original selado a 5 graus 35 ° C. O prazo de validade é de 12 meses a partir do fabrico; evitar o congelamento. |
Em sistemas interiores de azulejos de área úmida, onde a barreira impermeabilizante primária é ligada diretamente ao substrato de concreto antes da aplicação de argamassa fina, a loda cimentina aplicada com líquido deve formar um filme contínuo, sem buracos de alfinete, capaz de resistir à migração lateral de umidade sob umidade intermitente. Formulações baseadas na emulsão CELVOLIT 1318 VAE, dosadas para fornecer uma relação em peso polímero sólido-cimento (p/c) de 0,45–0,55, o que equivale a uma carga de emulsão fornecida de 82–100 partes por 100 partes de cimento em 55 % sólidos nominais, são projetadas para atender aos requisitos de impermeável à água e adesão de EN 14891:2017 para produtos impermeáveis à água aplicados a líquidos (tipo CM). O componente seco tipicamente inclui CEM I 42,5 N cimento Portland, areia de sílice graduada 0,1-0,3 mm, um éter de celulose modificado com retardador e um desespumante não iónico; o lado líquido é CELVOLIT 1318 pré-diluído com água limpa para obter uma relação total água-cimento de aproximadamente 0,35. No local, o material é processado em um misturador de ação forçada - comumente um Collomix Xo 1 com panela rotativa e pá contra-corrente - operado a 300-400 rpm por 3-4 minutos após a adição de pó para garantir a dispersão completa sem arrastar ar. A argamassa resultante, livre de colapso, com uma consistência de fluxo de 140-160 mm determinada pelo método de tabela de fluxo de EN 1015-3, é transferida para o substrato e aplicada por palha entalhada em duas camadas para uma espessura total de filme seco de 1,5-2,0 mm; cada camada é levemente rolada com um aerador espigado para liberar bolhas presas. É necessário curar a ≥90% RH por um mínimo de 24 h antes da fixação do azulejo. A campanha de verificação da conformidade inclui o teste de impermeabilidade à água sob pressão positiva de 0,2 N/mm² por 24 h (EN 14891, cláusula 7.2) e o teste de resistência à adesão à tração após imersão em água de 7 d (EN 14891, cláusula 7.5) onde os valores devem exceder 0,5 N/mm², com falha ocorrendo coesivamente dentro da camada de revestimento. A configuração do produto acabado é um kit de dois componentes: um saco selado de pó de 25 kg e um balde líquido de 18 kg, rotulado para impermeabilização por trás de azulejos em banheiros, cabines de chuveiro e cozinhas domésticas. Os limites de funcionamento são as temperaturas do substrato acima de 5 °C e a umidade relativa ambiente abaixo de 85 % no momento da aplicação; O contacto com metais reativos como alumínio e zinco deve ser evitado devido à evolução do hidrogênio alcalino. A formação de filme de polímero, que ocorre à medida que o cimento hidrata e a água é consumida, fornece a flexibilidade e adesão necessárias, mas a exposição ao congelamento antes que a argamassa alcance uma resistência à compressão de 5 N/mm² pode causar ruptura irreversível do filme e perda de integridade impermeável.
Preços competitivos CELVOLIT 1318 Emulsão VAE para revestimentos impermeabilizantes de cimento polimérico que se ajustam ao seu orçamento - termos flexíveis e orçamentos personalizados para cada encomenda.
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The integration of vinyl acetate-ethylene (VAE) copolymer emulsions into polymer-modified cementitious waterproofing slurries has become standard practice where flexibility, adhesion, and crack-bridging capability exceed the performance ceiling of unmodified mortars. CELVOLIT 1318 is a carboxylated VAE dispersion engineered specifically for two-component polymer cement waterproofing coatings, supplied as an anionic-stabilized aqueous emulsion with a nominal solids content of 55 ± 1 % and a Brookfield viscosity at 20 °C (spindle 4, 20 rpm) in the range of 1500–4000 mPa·s. The dispersed phase exhibits a glass transition temperature (Tg, midpoint by DSC per ISO 11357-2) of approximately −3 °C, imparting low-temperature film-forming characteristics without external coalescing solvents. Minimum film formation temperature (MFFT, ISO 2115) is <1 °C, a critical parameter that permits on-site mixing and application under cold-weather conditions where styrene-acrylic alternatives with MFFT above 10 °C may require temporary heating or solvent addition, practices incompatible with enclosed spaces and current VOC directives.
The product is delivered at a pH of 4.0–5.5, stabilized with a non-alkylphenol ethoxylate (non-APE) surfactant system compliant with EU Regulation 1907/2006 (REACH) Annex XVII restrictions. Mechanical stability under high-shear mixing—typical of paddle-type mortar mixers operating at 300–600 rpm—is rated for continuous agitation durations up to 20 minutes without irreversible coagulum formation. However, prolonged pumping through progressive cavity pumps with stator-rotor clearances below 0.5 mm has been observed on certain production lines to generate localized heating exceeding 45 °C, at which point the emulsion can undergo partial thermal destabilization; inline temperature monitoring and a recirculation loop with a heat exchanger are recommended when transfer distances exceed 50 m.
The differentiation resides in the chemical anchoring mechanism within the hydrating cement pore solution. Carboxyl groups present on the CELVOLIT 1318 polymer backbone undergo ionic complexation with divalent calcium ions (Ca²⁺) liberated during alite (C₃S) and belite (C₂S) hydration. This complexation forms a network of ionic crosslinks between the polymer particles and the inorganic cement gel, yielding a co-continuous microstructure rather than a simple interpenetrating network. In contrast, non-carboxylated styrene-butyl acrylate copolymer emulsions rely predominantly on physical encapsulation of cement grains and film coalescence upon drying; when immersed in water, the polymer-cement interface can undergo hydrolytic delamination, leading to a drop in wet adhesion strength below 0.5 MPa as measured by pull-off tests per EN 14891 A.6.2. CELVOLIT 1318-modified compositions, formulated with a polymer-cement ratio (p/c) of 0.20–0.35, retain wet adhesion values exceeding 1.0 MPa on standard concrete substrates after 28 days of water immersion at 23 ± 2 °C, and often exhibit substrate-cohesive failure rather than adhesive rupture, indicating the waterproofing membrane bond outlasts the concrete tensile strength.
| Property | Test Standard | CELVOLIT 1318 at p/c 0.30 | Styrene-Acrylic Emulsion (p/c 0.30) |
|---|---|---|---|
| Water impermeability (positive-side pressure, 0.75 MPa/7h) | EN 14891 A.7 | No penetration | No penetration |
| Crack bridging ability at 23 °C (mm) | EN 14891 A.8.1 | 0.92 ± 0.08 | 0.48 ± 0.12 |
| Crack bridging ability at −5 °C (mm) | EN 14891 A.8.2 | 0.63 ± 0.11 | 0.10 ± 0.05 |
| Adhesion after water contact (MPa) | EN 14891 A.6.2 | 1.15 (cohesive failure) | 0.62 (adhesive failure) |
| Chloride ion penetration depth (mm, ASTM C1543) | ASTM C1202 modified | 3.2 | 7.9 |
Formulators must note that the carboxylation density of CELVOLIT 1318 also accelerates cement hydration kinetics. Isothermal calorimetry data at 23 °C reveal a shortening of the induction period by approximately 45 minutes relative to a non-carboxylated VAE and a corresponding increase in the main hydration peak height by 12–18 %. This effect demands adjustment of the retarder dosage in the dry-mix component, particularly where the liquid polymer is batched on-site rather than as a pre-calibrated factory blend. A typical retarding agent, such as sodium gluconate at 0.05–0.15 wt% of binder, re-establishes open time to 60–90 minutes without compromising 28-day compressive strength.
Waterproofing coatings applied over green concrete or substrates with high residual moisture content present a persistent field failure mode: incomplete film coalescence of the polymer phase. CELVOLIT 1318, with an MFFT below 1 °C and a relatively high ethylene content (estimated in the range of 15–20 % by monomer feed ratio), forms a coherent film even when capillary pore water in the substrate maintains a relative humidity above 85 % at the interface. The film formation mechanism transitions from particle deformation to continuous film through water evaporation and capillary pressure-driven compaction; the low Tg ensures sufficient particle mobility even at 10 °C substrate temperature, a common condition in underground parking structures during autumn. Published failure analysis reports on construction projects where styrene-acrylic-based waterproofing slurries were applied at substrate temperatures below 12 °C document micro-crazing and pinholing attributed to arrested coalescence, detectable by water-spray dye penetrant testing within 48 hours of application. In contrast, field data from polymer-modified slurries based on CELVOLIT 1318 applied at 8 °C and 80 % RH show continuous film formation and absence of interconnected porosity when examined by cross-sectional SEM at 500× magnification.
This performance domain extends to the moisture vapor transmission rate (MVTR) of the cured membrane. Per EN ISO 7783-2, a CELVOLIT 1318-modified cementitious coating (dry film thickness 2.0 mm) exhibits an MVTR in the range of 15–25 g/(m²·d), classifying it as breathable yet liquid-water-tight. Such transmission rates are essential for “negative-side” waterproofing applications on earth-retaining structures, where hydrostatic pressure can force water between the concrete substrate and a fully impermeable, vapor-closed membrane, causing blistering. The MVTR is tunable by adjusting the p/c ratio: at p/c 0.20, MVTR drops to approximately 10 g/(m²·d); at p/c 0.40, it rises to 30–35 g/(m²·d), but wet adhesion after 14 days of water immersion begins to decline if the ratio exceeds 0.38, likely due to dilution of the cement gel matrix continuity.
| Key Specification | CELVOLIT 1318 Value | Test Method |
|---|---|---|
| Solids content | 55 ± 1 % | ISO 3251 (2 h at 105 °C) |
| Viscosity (Brookfield RVT, 20 rpm, 23 °C) | 1500–4000 mPa·s | ISO 2555 |
| pH | 4.0–5.5 | ISO 976 |
| Glass transition temperature (Tg) | −3 ± 1 °C | ISO 11357-2 (DSC, 10 K/min) |
| Minimum film formation temperature | <1 °C | ISO 2115 |
| Particle size (D50) | 0.8–1.2 µm | Laser diffraction (ISO 13320) |
| Stabilizer type | Anionic, non-APE surfactant | – |
| Storage stability (sealed container, 5–35 °C) | 12 months from date of manufacture | Visual, no settling> 1 mm |
Specifications listed are typical lot average values and do not constitute guaranteed limits. Production batches are subject to internal quality control ranges that align with the above test methods; certificates of analysis accompany each shipment referencing these ISO procedures.
The emulsion contributes significantly to the rheological profile of the mixed slurry. At a standard mix proportion of 1 part liquid polymer : 4 parts powder (by weight), the resulting slurry exhibits shear-thinning behavior with a dynamic viscosity at 10 s⁻¹ of approximately 3000–5000 mPa·s and at 100 s⁻¹ of 800–1500 mPa·s (measured by a rotational rheometer with parallel plate geometry, gap 1 mm, 23 °C). The pronounced pseudoplasticity ensures that the material flows readily during trowel or roller application yet resists sag when placed on vertical surfaces at wet film thicknesses up to 2.5 mm. Sag resistance tested per a modified ASTM D4400 procedure (notched sag gauge, 2 mm clearance) at 20 °C and 65 % RH yielded zero sag at wet thicknesses up to 2.0 mm. For spray application via airless piston pumps (e.g., Graco GH 130 or equivalent with a 40:1 ratio pump), the shear-viscosity reduction under tip shear rates of 1000–5000 s⁻¹ enables atomization with tip sizes as small as 0.021 in (0.53 mm), though a 0.025–0.027 in orifice is recommended for sustained production throughput above 3 L/min.
Experienced applicators report that the open time of CELVOLIT 1318 slurries, defined as the interval during which a fresh bead of material can be blended into the preceding pass without a visible cold joint, ranges from 25 to 40 minutes at 23 °C and 50 % RH. This window is shorter than that of some purely acrylic liquid modifiers, which can remain workable for over 60 minutes but exhibit greater sensitivity to plastic cracking due to slower setting. The shorter open time is a direct consequence of the accelerated cement hydration noted above, and it should be factored into crew size planning; a 3-person gang (one mixer, one applicator, one finisher) typically manages a continuous application rate of 15–20 m²/h for a two-coat system with embedded reinforcement mesh.
When outdoor application is required on open terraces or balconies, the slurry’s susceptibility to early rain wash-out is a critical field concern. The combination of rapid cement stiffening due to carboxylate-induced acceleration and polymer film formation at the surface reduces wash-out risk compared to EVA powder-modified mortars that rely solely on redispersible powders. Simulated rainfall testing (water spray at 50 mm/h intensity applied 2 hours after troweling at 1.5 mm thickness) on a CELVOLIT 1318 mortar at p/c 0.30 resulted in less than 3 % mass loss, versus 18–25 % mass loss for a comparable formulation using a commercial VAc/VeoVa redispersible powder at a polymer content of 10 wt% of the dry mix. This resilience is directly transferable to job sites in regions with unpredictable weather patterns and eliminates the need for temporary rain-shielding measures for short-duration storm events.
Several processing pitfalls have been catalogued from technical service interventions on active manufacturing and application sites. One recurring issue involves the over-dilution of CELVOLIT 1318 with water at the job site to extend pot life or improve trowel slip. Dilution to a polymer solids content below 45 % in the liquid component (i.e., adding more than 20 parts water per 100 parts emulsion) disrupts the ionic balance and can cause a sharp drop in wet adhesion down to 0.3 MPa or lower because the polymer-cement ratio in the cured film shifts out of the optimal interlocking range. Quality control protocols should strictly prohibit uncontrolled water addition; if flowability must be increased, a dispersion-compatible superplasticizer (polycarboxylate ether, PCE, at 0.1–0.3 % on cement weight) should be incorporated into the powder component instead. A second failure mode arises when the emulsion is exposed to repeated freeze-thaw cycles during transport in unheated trucks. Although the emulsion is protected against freezing by formulation, extended exposure to temperatures below −5 °C for more than 48 hours can induce irreversible viscosity increase and microscopic gel particles visible on a Hegman gauge at 50 µm. Containers should be stored indoors at 5–35 °C; thawing of inadvertently frozen product must be performed slowly at 20–25 °C over 24–48 hours, accompanied by low-shear agitation at 100 rpm. High-shear mixing of thawed material without adequate rest can destroy the remaining shear-stable fraction, resulting in macroscopic phase separation.
