diff --git a/charts/portalmodelo/v0.6.0/templates/_helpers.tpl b/charts/portalmodelo/v0.6.0/templates/_helpers.tpl
index 4e7447c..f1a85c6 100644
--- a/charts/portalmodelo/v0.6.0/templates/_helpers.tpl
+++ b/charts/portalmodelo/v0.6.0/templates/_helpers.tpl
@@ -67,3 +67,40 @@ Selector labels for ZEO Server component
 {{ include "portalmodelo.selectorLabels" . }}
 app.kubernetes.io/component: zeoserver
 {{- end }}
+
+{{/*
+Calculates zeoInitialDelaySeconds from a Kubernetes resource quantity (Ki, Mi, Gi, K, M, G, or raw bytes).
+Usage: include "portalmodelo.zeoInitialDelaySeconds" .Values.persistence.size
+*/}}
+{{- define "portalmodelo.zeoInitialDelaySeconds" -}}
+{{- $rawSize := . | toString -}}
+{{- $num := regexFind "[0-9]+" $rawSize | default "0" | float64 -}}
+{{- $unit := regexFind "[a-zA-Z]+" $rawSize | default "" | upper -}}
+
+{{- $sizeGiFloat := $num -}}
+{{- if eq $unit "KI" -}}
+  {{- $sizeGiFloat = divf $num 1048576 -}}
+{{- else if eq $unit "MI" -}}
+  {{- $sizeGiFloat = divf $num 1024 -}}
+{{- else if eq $unit "GI" -}}
+  {{- $sizeGiFloat = $num -}}
+{{- else if eq $unit "K" -}}
+  {{- $sizeGiFloat = divf $num 1000000 -}}
+{{- else if eq $unit "M" -}}
+  {{- $sizeGiFloat = divf $num 1000 -}}
+{{- else if eq $unit "G" -}}
+  {{- $sizeGiFloat = $num -}}
+{{- else if eq $unit "TI" -}}
+  {{- $sizeGiFloat = mulf $num 1024 -}}
+{{- end -}}
+
+{{- $calculatedSeconds := int64 (round (mulf $sizeGiFloat 0.9) 0) -}}
+{{- /* Clamp between min (30s) and max (720s / 12m) */ -}}
+{{- if lt $calculatedSeconds 30 -}}
+  30
+{{- else if gt $calculatedSeconds 720 -}}
+  720
+{{- else -}}
+  {{- $calculatedSeconds -}}
+{{- end -}}
+{{- end -}}
diff --git a/charts/portalmodelo/v0.6.0/templates/zeoserver-deployment.yaml b/charts/portalmodelo/v0.6.0/templates/zeoserver-deployment.yaml
index 227fb09..2143d88 100644
--- a/charts/portalmodelo/v0.6.0/templates/zeoserver-deployment.yaml
+++ b/charts/portalmodelo/v0.6.0/templates/zeoserver-deployment.yaml
@@ -1,6 +1,5 @@
 {{- if .Values.instance.zeoclient }}
-{{- $sizeGi := regexFind "[0-9]+" (.Values.persistence.size | toString) | int }}
-{{- $zeoInitialDelaySeconds := max 60 (int (mulf $sizeGi 0.9)) }}
+{{- $zeoInitialDelaySeconds := include "portalmodelo.zeoInitialDelaySeconds" .Values.persistence.size | int }}
 apiVersion: apps/v1
 kind: Deployment
 metadata: