diff --git a/src/Controls/src/Core/BorderElement.cs b/src/Controls/src/Core/BorderElement.cs
index 0253f5c1b5fb..cb1ec2fe41d0 100644
--- a/src/Controls/src/Core/BorderElement.cs
+++ b/src/Controls/src/Core/BorderElement.cs
@@ -14,7 +14,7 @@ static class BorderElement
 									propertyChanged: OnBorderColorPropertyChanged);
 
 		/// <summary>Bindable property for <see cref="IBorderElement.BorderWidth"/>.</summary>
-		public static readonly BindableProperty BorderWidthProperty = BindableProperty.Create(nameof(IBorderElement.BorderWidth), typeof(double), typeof(IBorderElement), -1d);
+		public static readonly BindableProperty BorderWidthProperty = BindableProperty.Create(nameof(IBorderElement.BorderWidth), typeof(double), typeof(IBorderElement), 0d);
 
 		/// <summary>Bindable property for <see cref="IBorderElement.CornerRadius"/>.</summary>
 		public static readonly BindableProperty CornerRadiusProperty = BindableProperty.Create(nameof(IBorderElement.CornerRadius), typeof(int), typeof(IBorderElement), defaultValue: DefaultCornerRadius);
diff --git a/src/Controls/src/Core/RadioButton/RadioButton.cs b/src/Controls/src/Core/RadioButton/RadioButton.cs
index 553d00ac2b10..6a83884c2984 100644
--- a/src/Controls/src/Core/RadioButton/RadioButton.cs
+++ b/src/Controls/src/Core/RadioButton/RadioButton.cs
@@ -459,9 +459,7 @@ static View BuildDefaultTemplate()
 
 			border.SetBinding(Border.StrokeProperty, static (RadioButton rb) => rb.BorderColor, source: RelativeBindingSource.TemplatedParent);
 			border.SetBinding(Border.StrokeShapeProperty, static (RadioButton rb) => rb.CornerRadius, source: RelativeBindingSource.TemplatedParent, converter: new CornerRadiusToShape());
-
-			// NonNegativeValueConverter ensures that StrokeThickness remains non-negative as the default value of -1 triggers a CGContextSetLineWidth error on iOS.
-			border.SetBinding(Border.StrokeThicknessProperty, static (RadioButton rb) => rb.BorderWidth, source: RelativeBindingSource.TemplatedParent, converter: new NonNegativeValueConverter());
+			border.SetBinding(Border.StrokeThicknessProperty, static (RadioButton rb) => rb.BorderWidth, source: RelativeBindingSource.TemplatedParent);
 
 			var grid = new Grid
 			{
@@ -696,18 +694,5 @@ public object ConvertBack(object value, Type targetType, object parameter, Syste
 				throw new NotImplementedException();
 			}
 		}
-
-		class NonNegativeValueConverter : IValueConverter
-		{
-			public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
-			{
-				return Math.Max(0, (double)value);
-			}
-
-			public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
-			{
-				throw new NotImplementedException();
-			}
-		}
 	}
 }